Complete Home Buyer's Guide to Septic Systems
Instructions for Buying a Home With a Septic Tank

HOME BUYERS GUIDE to SEPTIC SYSTEMS - home - CONTENTS: what a home buyer needs to know about buying a home with a septic tank & leachfield, how to maintain the septic system, what goes wrong with septic systems, & how to diagnos & repair septic system & drain line failures or backups.
POST a QUESTION or READ FAQs & advice about buying a home with a private septic system
REFERENCES

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How to check out the septic system when buying a home.

This article series answers just about any question you might have about buying or owning a house with a septic system. The article gives critical advice to people buying a home with a septic tank and drainfield or similar septic systems.

We explain what a septic system is, we identify its basic parts, and we explain the basics of how private or onsite septic systems work.

This home buyer's guide to septic systems tells what inspection, testing, and maintenance are recommended when buying a home with a private septic system.Here we explain how to reduce the risk of a costly surprise by asking questions, visually inspecting the septic system, and by testing the septic system before buying a home. The drawing of a conventional two-compartment septic tank at page top and discussed in this article was provided courtesy of Carson Dunlop Associates.

Advice for People Buying a Home with a Septic Tank

Article Contents

The articles in this series explain what a septic system is and outline step by step septic inspection and testing for home buyers. Learning a little about how septic systems work (described here) and about septic cleaning (removing septic waste), and testing a septic system before buying a new home can help you avoid installing a septic system or replacing the septic system as a big surprise.

Because the septic tank and drainfield at a property are buried, thus hidden from view, because these components are expensive to replace, and because a costly problem can be present but not obvious, it is important to understand the septic system and to inspect and test it when buying a property served by its own private septic tank.

Septic systems include buried septic tanks (sewage tanks) and drainfields - expensive and hidden from view such as in the photo at left. This document provides advice for home buyers who are buying a home with a private septic system: homes using a septic tank and drainfield or similar soil absorption system.

Other chapters of this guide explain what goes wrong with septic systems, 5-recommends and describes septic inspection and test methods in more detail, explains how to be sure your septic inspection and septic test are conducted properly, tells you where to get more septic system information about a given property, and warns of unsanitary or dangerous site conditions.

If you need to know how to install a septic system, or if you find that you have a sewage pit (cesspool) this website provides articles explaining those topics too. If you prefer to read a basic guide to septic system inspection and testing for home buyers all in one brief article,
see SEPTIC SYSTEM TEST BASICS.

Our schematic of a conventional two-compartment septic tank (below) illustrates the first of two major septic system parts: the septic treatment tank. The image is provided courtesy of Carson Dunlop Associates.

What is a Septic Tank and How do Septic Systems Work: Nine Basic Questions & Answers

Home buyers frequently ask us these questions about septic systems:

"What is a Septic Tank?
What is a Leach Field?
How does a septic system work?
What does the existing septic system consist of at my new home?
Do I have a Cesspool or Drywell?
How do I know if the septic system is working properly?
What septic inspections and tests should I have performed when I am buying a home?
How long will a septic system last?
Is septic system maintenance necessary?"

To help buyers obtain the necessary information to address these questions, we have put together this document to guide them in making informed decisions regarding the potential problems and costs associated with a property's septic system.

What You Need to Know, Find-out, & Do when buying a home with a septic system

How Septic Systems Work. Here is the minimum you need to know and what you need to do (or have done) when buying a property with a septic system

Our sketch below shows the second major portion of a septic system: the effluent disposal or drainfield or soakaway bed that disposes of clarified effluent liquid waste that leaves the septic tank.

So how does a septic system work? A private onsite septic system means that the waste from your building drains (sinks, showers, toilets) goes into a septic tank which retains the solids and lets the effluent flow into the soils on the property.

To avoid contaminating the environment, including nearby wells and waterways, septic system wastewater must be treated to reduce its pathogenicity. Luckily naturally-occurring bacteria found in the septic tank and drainfield soils accomplish this task - as long as the septic system is working properly.

In a standard septic tank and drainfield system, about 40% of the treatment of sewage wastewater occurs in the septic tank, and the remaining 60% occurs in the drainfield trenches and surrounding soils.

Properly designed and installed private septic tank and drainfield or soakaway bed systems are functional and sanitary. Private septic systems serve more homes in the U.S. and many other countries than any other waste disposal method. But the components are costly and do not have an indefinite life.

Below in more detail we provide a LIST of the MAJOR COMPONENTSof Residential Septic Systems: Septic Tank, Drainfield, & a Description of How Septic Systems Work

Steps to Take When Buying a Home With a Septic Tank

Because of the potential repair/replacement costs involved, and because the system is buried and cannot be exhaustively inspected and tested, you want to do what you can to evaluate the condition of the septic system before you complete the purchase of the property.

Here's what to do: If you are buying a home with a septic tank and drain field, here's what you need to do, as succinctly as possible. Each of these steps is described in more detail below, and in even more detail in linked-to documents.

Steps 1 and 2 are essential. Step 3 is usually a good idea. Step 4 depends on the results of steps 1,2,3 but is usually a good idea. Step 5 is not usually done but might be necessary. Step 6 is what you do if you're being really thorough.

Synonyms for "septic system" used by the general public include septic waste system, sewage systems, and water sewage systems, even Roman sewage systems. All of these refer to onsite systems which hold and separate sewage waste from its liquid effluent which is treated further and then disposed-of by any of a variety of means which we will discuss.

At this site we also discuss special considerations for handling septic waste such as garbage disposal septic tank waste volume and what to do about it. Perform these steps in the order we list them. (For example, don't pump the tank before a loading and dye test.)

See HOME BUYER'S SEPTIC TEST for more details about steps 1, 2, 3 in this list.

Ask About the Septic System - where is it, what's installed, what's the service and repair history. If the owners don't know where the septic system is, ask how long they've lived in the home: that will be informative.
Make a Visual Site Inspection for signs of trouble. Here's a great clue: if nobody knows where the septic tank is, then you can be sure nobody has been maintaining the septic system as regular pumpouts are an important part of septic system maintenance and septic system life preservation.

To find the septic tank see SEPTIC TANK, HOW TO FIND. If you can find the tank, for safety, be sure that there is no evidence of collapse or subsidence on the property, and be sure that the septic tank (or cesspool, or drywell) has a safe cover so that no one can fall into the tank.

See SEPTIC TANK COVERS for details.
Perform a Septic Loading & Dye Test to see if it produces evidence of a failure. Hire a home inspector who knows how to perform and will include this test.
See PRE-PURCHASE SEPTIC DYE TEST
and also
See SEPTIC DYE TEST WARNINGS for warnings about what can go wrong during septic testing or what can give false test results.

Or SEPTIC SYSTEM INSPECTION & TEST GUIDE for complete details of how a septic system test is performed.
Pump the Septic Tank and inspect for additional clues, depending on what you learned at 1,2,3. Abnormal sewage levels in the septic tank can be a strong indicator of a problem with the septic system.

See SEPTIC TANK PUMPOUT TIMING ERRORS for pumpout timing details

Watch out: don't pump a septic tank before the septic test: doing so will prevent a valid septic loading & dye test.

At SEWAGE LEVELS in SEPTIC TANKS we explain how to interpret the meaning of high or low sewage levels in the septic tank as well as thick or thin scum or sludge levels. For general septic tank maintenance

also see SEPTIC TANK PUMPING SCHEDULE.
Additional Septic System Physical Investigation might be needed if during the visual site inspection, the septic loading and dye test, or the septic tank open inspection and pumpout disclose abnormal conditions.
See ADDED INVESTIGATIONS for SEPTIC SYSTEMS - discussed in HOME BUYER'S SEPTIC TEST
Get Outside Information about the septic system: There are some independnt sources of information about the septic system at your property that you can check in order to be thorough.
See ASK OUTSIDERS- also discussed in HOME BUYER'S SEPTIC TEST
Check neighboring properties and their nearby septic systems both for advice for dealing with a neighboring septic system producing odors or seepage and to look for encroachment onto the property you are buying
See NEIGHBORING SEPTIC SYSTEM PROBLEMS for details.

The six home buying steps listed above are explained in detail at HOME BUYER'S SEPTIC TEST but first you might want to review the basics about septic systems at
3-SEPTIC SYSTEM COMPONENTS
and also
4-WHAT GOES WRONG with septic systems.

Conflicts of Interest at Septic System Inspections & Home Inspections

Watch out for conflicts of interest when hiring a home inspector or a septic system inspector to examine a property before purchase. Choose an inspector who is qualified, experienced, and who will protect your interest.

Because sale of homes is a low volume high stakes deal, everyone involved feels a lot of pressure. That pressure explains why a home seller and real estate agents are very nervous about any inspector who they thinks may "rock the boat" and jeopardize their sale, though that's no excuse for putting the new home owner and occupants at risk of financial injury or worse, personal injury.

Real estate is very much a "caveat-emptor" buyer beware transaction, and the buyer is expected to perform her own due diligence. In fact, in our OPINION some of the pertinent real estate laws, while reasonable on the face of it, such as excusing an agent from liability regarding any representation of property condition, may at times encourage ... well how should we put it ... not the most honest behavior.

The concerns felt by the real estate profession may have contributed to the recent elimination of the NYS Home Inspection Advisory Board who tried monitored and advised on legislation regulating home inspectors in New York State. That news, reported by NYSAHI[5], was a sad step in a bad direction.

But more encouraging, in April 2012, the Code of Ethics for Home Inspectors for the State of New York, Title 19 NYCRR[3], now includes this text:

197-4.7 Conflicts of Interest

e) Home inspectors shall not directly or indirectly compensate, in any way, real estate brokers, real estate salespersons, real estate brokerage companies, lending institutions or any other party or parties that expect to have a financial interest in closing the transaction, for future referrals of inspections or for inclusion on a list of recommended inspectors or preferred providers or any similar arrangement.

That provision means that inspectors can't pay realtors for referrals. The fly in the ointment of that salve is that nothing prevents a realtor from "steering" a home buyer to inspectors whom the agent knows will soft-soap or under-report concerns at a property. All it takes is a list or a wink and a nod when naming names.

That is why we have long held that folks buying a home should obtain inspection services from experts who have absolutely no relationship with others in the transaction and who are referred by independent sources such as professional home inspector associations[4] or friends or neighbors. In our OPINION real estate agents and even lawyers for whom real estate closings are a significant part of their business should only refer their clients to independently-maintained lists of inspectors and never to their own lists or friends.

The New York State Association of Home Inspectors (NYSAHI) considers placement by a realtor (or attorney) on a list of "preferred providers" constitutes a referral, as do oral or un-written referrals as well.

Conflicts of interest are not just unethical, they invite a lawsuit for fraud.

Watch out: septic system inspections are not included in typical state home inspector regulations and laws, even if the inspector was also performing a home inspection at the time. In essence, as of 2012, ancillary property inspection and testing services such as septic inspection and testing and environmental inspections and testing are not covered by home inspection regulations.

A home inspector or a septic system inspector cannot tell you whether or not you should buy a property. But s/he is expected to tell you about conditions that are dangerous, things that need near-term expensive repair or replacement (like a septic tank or drainfield if that inspection is performed), and about things you need that just don't work at an acceptable level of safety and reliability. An inspector who skips those items didn't do such a great job.

It would be unusual for the cost of repairs to be such a big portion of purchase price that a buyer should not proceed with the purchase. But a buyer needs to know what repairs are needed now and in the near future, what condtions are unsafe, and what conditions are causing rapid costly damage to the property - that's how the buyer can make a financially responsible financial plan, know how much money is needed, and know the priority of how to spend repair dollars.

Perhaps if enough cases of deception, manipulation, soft-soaping, or ms-representation by inspectors who are plagued by conflicts of interest reach the courts, those who are not moved by ethics will be moved by the law, and by the cost of failing to protect their putative clients.

List of Major the Major Components of Residential Septic Systems: Septic Tank, Drainfield, & More

SEPTIC SYSTEM COMPONENTS - the Basic Parts of a Conventional Septic Tank and Leachfield

Our sketch of a typical septic tank and drainfield (below) illustrates how waste moves from the building to the septic tank and how liquid waste is ultimately treated and disposed-of in the leachfield or drainfield.

Top View Sketch of Septic Septic System Components

The purpose of a septic system is to retain solid waste in the tank and to dispose of effluent waste water into the ground without contaminating the environment.

To accomplish this a septic system consists of the elements shown in the sketch above. In simplest terms, a septic system consists of a holding tank which retains solid waste and grease from household waste water, and an absorption system or "leach field" which disposes of liquid wastewater or "effluent" which leaves the septic tank for absorption below ground into soils at the property.

Let's just outline these main septic system parts in a little more detail:

The main waste line or "sewer line" connects the home's plumbing to the septic tank.
The septic tank which is often buried just a few feet from the house foundation wall, receives all waste (solid and liquid) and has the main job of retaining solids and grease. Solids settle to the bottom of the tank as sludge. A floating scum and grease layer forms at the top of the tank.

Baffles at the tank inlet and outlet reduce the velocity of liquid moving through the tank and prevent solids and floating scum from leaving. Clarified effluent is allowed to flow out of the tank into a soil absorption system. In some states (Connecticut since January 1991) septic tanks now consist of two compartments in order to do a more effective job, and increasingly other jurisdictions (Alaska, Pennsylvania) require that new and up-graded onsite wastewater disposal systems use two-compartment septic tanks.
A effluent distribution pipe direct the flow of effluent from the septic tank to the leaching system, often connecting first to one or more distribution boxes which in turn distribute flow of effluent evenly into the leaching system.
A leaching system, or soil absorption system, also called "drainfield", a soakaway system, leachfield, or seepage bed disperses the sewage effluent into the surrounding natural soils. There are many types of leaching systems but the most common is a network of perforated pipes buried in gravel-filled trenches. The specific type utilized on a particular property depends on the soil conditions and the amount of space available.

Galleries or "septic galleys", seepage pits and sand beds have historically been used.

Most distribution piping and leaching systems are "gravity" systems, meaning the flow runs through piping and distribution boxes without the assistance of any mechanical device, such as a pump or siphon, but some homes pump their effluent uphill into a mound system.

Advanced wastewater treatment systems are also available to handle difficult sites.

Home Buyers & Home Owenrs Septic System Care Articles

HOME BUYERS GUIDE to SEPTIC SYSTEMS - complete guide to buying a home with a septic tank

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Or see ABANDONED or NEW SEPTIC SYSTEM TESTS

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HOME BUYERS GUIDE to SEPTIC SYSTEMS at InspectApedia.com - online encyclopedia of building & environmental inspection, testing, diagnosis, repair, & problem prevention advice.

INDEX to RELATED ARTICLES: ARTICLE INDEX to SEPTIC SYSTEMS

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Technical Reviewers & References

Click to Show or Hide Citations & References

[2] Sketches of the Septic System Components Private Sewage Disposal Systems - Septic Drawing Library
Septic Systems - an Engineer's View
Septic System, Septic Tank, & Cesspool Safety Warnings for Septic Inspectors, Septic Pumpers, and Homeowners.
CESSPOOLS if you don't know what they are.
Don't Flush these things into a septic system
DRYWELL DESIGN & USES if you don't know what they are.
SEPTIC SYSTEMS ONLINE BOOK Online Book, Inspection, Test, Diagnosis, Repair, & Maintenance: Our Online Septic Book: Septic Testing, Loading & Dye Tests, Septic Tank Pumping, Clearances, details of onsite waste disposal system inspection, testing, repair procedures.
[3] Code of Ethics and Regulations for Home Inspectors, Department of State Division of Licensign Services, New York State, Addition of Subparts 197-4 and 197-5 to Title 19 NYCRR, SUBPART 197-4 CODE OF ETHICS AND REGULATIONS FOR HOME INSPECTORS, web search 4/11/2012, original source:
http://www.dos.ny.gov/licensing/homeinspect/hinspect_ethics.html
[Copy on file as NYS_Home_Inspector_Ethics.pdf]
[4] HOME INSPECTION ETHICAL CODES - Code of Ethics for Home Inspectors - Amercian Society of Home Inspectors
[5] NYSAHI Newsletter, April 2012, New York State Association of Home Inspectors, NYSAHI, website: http://www.nysahi.com/,

Books & Articles on Building & Environmental Inspection, Testing, Diagnosis, & Repair

Our recommended books about building & mechanical systems design, inspection, problem diagnosis, and repair, and about indoor environment and IAQ testing, diagnosis, and cleanup are at the InspectAPedia Bookstore. Also see our Book Reviews - InspectAPedia.

The Home Reference Book - the Encyclopedia of Homes, Carson, Dunlop & Associates Ltd., Toronto, Ontario, 2010, $69.00 U.S., is available from Carson Dunlop, and from the InspectAPedia bookstore. The 2010 edition of the Home Reference Book is a bound volume of more than 450 illustrated pages that assist home inspectors and home owners in the inspection and detection of problems on buildings. The text is intended as a reference guide to help building owners operate and maintain their home effectively. InspectAPedia.com ^® author/editor Daniel Friedman is a contributing author. Field inspection worksheets are included at the back of the volume.

Inspecting Septic Systems: Online Book, Inspection, Test, Diagnosis, Repair, & Maintenance: our Online Septic Book: Septic Testing, Loading & Dye Tests, Septic Tank Pumping, Clearances, details of onsite waste disposal system inspection, testing, repair procedures.

Advanced Onsite Wastewater Systems Technologies, Anish R. Jantrania, Mark A. Gross. Anish Jantrania, Ph.D., P.E., M.B.A., is a Consulting Engineer, in Mechanicsville VA, 804-550-0389 (2006). Outstanding technical reference especially on alternative septic system design alternatives. Written for designers and engineers, this book is not at all easy going for homeowners but is a text I recommend for professionals--DF.
Builder's Guide to Wells and Septic Systems, Woodson, R. Dodge: $ 24.95; MCGRAW HILL B; TP; Quoting from Amazon's description: For the homebuilder, one mistake in estimating or installing wells and septic systems can cost thousands of dollars. This comprehensive guide filled with case studies can prevent that. Master plumber R. Dodge Woodson packs this reader-friendly guide with guidance and information, including details on new techniques and materials that can economize and expedite jobs and advice on how to avoid mistakes in both estimating and construction. Chapters cover virtually every aspect of wells and septic systems, including on-site evaluations; site limitations; bidding; soil studies, septic designs, and code-related issues; drilled and dug wells, gravel and pipe, chamber-type, and gravity septic systems; pump stations; common problems with well installation; and remedies for poor septic situations. Woodson also discusses ways to increase profits by avoiding cost overruns.
Country Plumbing: Living with a Septic System, Hartigan, Gerry: $ 9.95; ALAN C HOOD & TP; Quoting an Amazon reviewer's comment, with which we agree--DF:This book is informative as far as it goes and might be most useful for someone with an older system. But it was written in the early 1980s. A lot has changed since then. In particular, the book doesn't cover any of the newer systems that are used more and more nowadays in some parts of the country -- sand mounds, aeration systems, lagoons, etc.

Composting Toilets - Books & References

Composting Toilet System Book: A Practical Guide to Choosing, Planning and Maintaining Composting Toilet Systems, David Del Porto, Carol Steinfeld. Quoting an Amazon review: Del Porto's book is the definitive composting toilet book at this time. There is nothing even close. His book covers all aspects of composting toilet systems and touches on graywater issues as well. He treats the composting toilet as part of the home system. If a person is seriously interested in installing/having a composting toilet, this book can save him/her all of the mistakes people usually make. He even (carefully) explodes some of the advertising myths that the purveyors of composting toilets would have us believe. The book covers ready-made systems as well as home built systems. As trite as this sounds, the book truly is a must for someone considering installing composting toilet.
The Humanure Handbook: A Guide to Composting Human Manure, 3rd Ed., Joseph C. Jenkins. Quoting part of an Amazon review: The Humanure Handbook provides a wealth of thoroughly researched, hands-on experience and scientific data that demonstrates that after a natural process called "thermophilic" bacterial digestion, which occurs in a compost bin and where all pathogens are killed, excreta is then converted to a valuable nutrient for agriculture and thereby completing a full-circle life cycle. Most importantly, effluent can then be kept out of our drinking water and not treated or referred to as an undesirable "waste product".
The information is conveyed in a humorous, folksy, down-to-earth easy to understand style along with drawings, charts, tables, photos and a wealth of resource info for further research. Jenkins' website has a forum for sharing more info, experiences and to answer any and all questions in the process of humanuring and constructed wetland gray water treatment.
Thermal composting of fecal matter as treatment and possible disinfection method--laboratory-scale and pilot-scale studies, B. Vinneras, A. Bjorklund, H. Jonsson. Quoting Amazon review: When using toilets where the urine and faeces are collected separately for reuse as nutrients in agriculture, the collected matter should be disinfected. One way to do this is by thermal composting. Composting of different material mixes was investigated in a laboratory-scale experiment. This showed that the best mixture for dry thermal composting was a mix of faeces, food waste and amendment. The urine was collected separately by use of urine-diverting toilets. A new method was developed to mathematically evaluate and estimate the safety margins of pathogen inactivation during thermal composting. The method is based upon a mathematical calculation of the number of times total inactivation (at least 12log"1"0 reduction) of the organisms is achieved. In a pilot-scale experiment, the disinfection of a faeces/food waste mix was performed with a calculated safety margin of more than 37 times the total die-off of Enteroviruses and some 550 times that of Ascaris. Thus, well functioning composting seems to be effective for disinfection of faecal matter. To get a high temperature in all of the material, the reactor has to have sufficient insulation. A major disadvantage is the initial need for handling the raw un-disinfected material. The degradation of the organic matter in the compost was almost 75%, resulting in a small final volume that could safely be recycled.
Experiences with a composting toilet article from: Countryside & Small Stock Journal, available as HTML download. Quoting Amazon review: This digital document is an article from Countryside & Small Stock Journal, published by Countryside Publications Ltd. on May 1, 1994. The length of the article is 1516 words. The page length shown above is based on a typical 300-word page. The article is delivered in HTML format and is available in your Amazon.com Digital Locker immediately after purchase. You can view it with any web browser.
From the supplier: A composting toilet is a good alternative to propane burning toilets, but it also has many problems. The worst part is emptying the waste and compost every 4-6 weeks. Other problems are the fan that must be kept running constantly and bug infestation.
Decentralized Systems Technology Fact Sheet: Septic Tank - Soil Absorption Systems, U.S. EPA, PDF Document provides basic information about septic tanks and drainfields.

Design Manuals for Septic Systems

US EPA Onsite Wastewater Treatment Systems Manual [online copy, free] Top Reference: US EPA's Design Manual for Onsite Wastewater Treatment and Disposal, 1980, available from the US EPA, the US GPO Superintendent of Documents (Pueblo CO), and from the National Small Flows Clearinghouse. Original source http://www.epa.gov/ORD/NRMRL/Pubs/625R00008/625R00008.htm Onsite wastewater treatment and disposal systems, Richard J Otis, published by the US EPA. Although it's more than 20 years old, this book remains a useful reference for septic system designers. U.S. Environmental Protection Agency, Office of Water Program Operations; Office of Research and Development, Municipal Environmental Research Laboratory; (1980)
Eco John® Innovative Toilet Solutions, Global Inventive Industries, Fountain Valley CA, PDF, product brochure
"International Private Sewage Disposal Code," 1995, BOCA-708-799-2300, ICBO-310-699-0541, SBCCI 205-591-1853, available from those code associations.
"Manual of Policy, Procedures, and Guidelines for Onsite Sewage Systems," Ontario Reg. 374/81, Part VII of the Environmental Protection Act (Canada), ISBN 0-7743-7303-2, Ministry of the Environment,135 St. Clair Ave. West, Toronto Ontario M4V 1P5 Canada $24. CDN.
Manual of Septic Tank Practice, US Public Health Service's 1959.

Greywater System Books

The New Create an Oasis With Greywater, Art Ludwig; Buy New: $14.25. Ludwig is one of the most thoughtful, prolific, and sometimes controversial writers on gray water systems and alternative designs. We recommend his book as clear, easy-to-understand writing aimed at property owners who want or need to consider a graywater installation to conserve water, recycle water, reduce water use, or to reduce the load on their septic system. This is the latest edition of this Art Ludwig's greywater design book classic.
Builder's Greywater Guide, Art Ludwig; Buy New: $10.17. Installation of Greywater Systems in New Construction & Remodeling; A Supplement to the Book "Create an Oasis With Greywater" (Paperback). Quoting a review from Amazon: I recommend that you get the 3 companion books on greywater treatment "Create an Oasis", "Branched Drain Greywater Systems" and "Builder's Greywater Guide". The information in these volumes will keep most of us far more informed than most of the regulators, the system builders, and the experts-in-theory. These volumes are real-world gems.
Art Ludwig has cut to the core of wastewater issues. He's obviously done all of his homework, mulled-over the variables, and come up with a common sense, economically reasonable, environmentally responsible approach to wastewater. I expect to save money that I would have spent on a post-septic tank, aerobic unit that would seemingly have been ecologically responsible; but because of the technological overkill, ultimately that system would have defeated my altruistic environmental concerns.
... These books talk the talk and walk the walk better than anything else that I've seen. Buy a set for yourself, a set for your neighbors, and a set for the regulators.
Branched Drain Greywater Systems [superseded by "The New Create an Oasis with Greywater"], Art Ludwig. If you already have this book but are in the process of installing new gray water systems you should take a look at the newer edition listed first above in this section of our Greywater book recommendations. You may prefer the newest edition, but there is great information in this older version, perhaps all you need, and these copies are sold at very low prices - an aid to people of limited means.
Create an Oasis With Greywater: Your Complete Guide to Choosing, Building and Using Greywater Systems, Art Ludwig, [superseded by new edition] (Paperback) You may prefer the newest edition, but as I said above, there is great information in this older version, perhaps all you need, and these copies are sold at very low prices - an aid to people of limited means.
Rainwater Catchment Systems for Domestic Supply: Design, Construction and Implementation, Erik Nissen-Petersen, John Gould. (Mr. Ludwig, while much appreciated, is not the only author providing really useful design guides for graywater systems--DF) Quoting from an Amazon review: This book reviews the art of roof and ground catchment systems for rainwater. The water collected can be used for household or other purposes. The designs are aimed for individuals with limited access to electricity and/or civic water utilities. The text includes drawings, photographs and step-by-step instructions.
One might say the book is really written for the 'aid worker' since it also considers ethnic and gender issues that would be 'obvious' to the future owners of the the systems.
Guidelines on rainwater catchment systems for Hawaii, (CTAHR resource management publication) Patricia S. H Macomber. This more technical document may be especially helpful for rainwater collection and recycling systems for climates where there is heavy rainfall such as demonstrated for Hawaii.
Design for Water: Rainwater Harvesting, Stormwater Catchment, and Alternate Water Reuse, Heather Kinkade-Levario. Quoting from Amazon's review: Design for Water is an accessible and clearly written guide to alternate water collection, with a focus on rainwater harvesting in the urban environment. The book:
Outlines the process of water collection from multiple sources-landscape, residential, commercial, industrial, school, park, and municipal systems Provides numerous case studies, Details the assembly and actual application of equipment, Includes specific details, schematics, and references.
All aspects of rainwater harvesting are outlined, including passive and active system setup, storage, storm water reuse, distribution, purification, analysis, and filtration. There is even a section on rainwater harvesting for wildlife.
In addition to rainwater, there are several affordable and accessible alternate sources, including cooling tower bleed-off water, air conditioning condensate, gray water, and fog collection. Design for Water is geared to providing those making development decisions and guidelines with the information they need to set up passive harvesting techniques. The book will especially appeal to engineers, landscape architects, municipal decision-makers, developers, and landowners.
Heather Kinkade-Levario is a land-use planner in Arizona and the author of the award-winning Forgotten Rain. She is president of Forgotten Rain L.L.C., a rainwater harvesting and stormwater reuse company.
The Toilet Papers: Designs to Recycle Human Waste and Water : Dry Toilets, Greywater Systems and Urban Sewage (Paperback) Sim Van Der Ryn, Wendell Berry; Quoting from an Amazon review: With a title like "Toilet Papers" and from a distinguished eco-architect like Sim Van der Ryn, I needed no intro or review to buy a copy of this little, but well researched historical over-view of effluent mitigation and current eco-friendly toilet design.
This book is filled with good line drawings and photographs to depict everything from the historical perspective to the current dry toilets and their construction..
Rainwater Reservoirs Above Ground Structures for Roof Catchment: Most Common Rainwater Tanks in Comparison and Construction Manual, (Paperback) Rolf Hasse. [I have not reviewed this book --DF, but it may be helpful to people constructing rainwater collection and reservoir systems for use in arid climates such as Mexico and the U.S. Southwest.
Quality issues in harvested rainwater in arid and semi-arid Loess Plateau of northern China, K. Zhu, L. Zhang, W. Hart, M. Liu, H. Chen (out of print, find by search and deferred order). Amazon's description may be helpful: Loess soils cover vast areas in the arid and semi-arid regions of northern China. Due to the lack of reliable surface water and ground-water, rainwater harvesting has played a prominent role in farmers' domestic usage and agricultural irrigation. An economical and valid type of water storage cistern with optimum design of components has been introduced to rural areas in the Loess Plateau. Different collection alternatives showed apparent variations in rainwater quality. By using different catchments, such as mortar roofs and cement-paved courtyards, compacted land or road surfaces, rainwater can be effectively collected for storage in cisterns. This study focused mainly on the quality of rainwater harvested from the different catchment systems and stored for different periods of time. By analysis of the water samples stored in these cisterns, it was evident that rainwater quality could be improved significantly by self-purification during the storage. With emphasis on rainwater quality affected by the different catchment systems, it was found that the measured inorganic compounds in the rainwater harvested from roof-yard catchment systems generally matched the WHO standards for drinking water, while the concentrations of some inorganic compounds in the rainwater collected from land and road surfaces appeared to be higher than the guideline values for drinking water, but generally not beyond the maximum permissible concentrations. However, Fecal Coliform, which is an important bacteriological parameter for the three catchment systems, exceeded the limits of drinking water to a greater extend. Trace amounts of 55 organic pollutants were identified, including aliphatic hydrocarbons, aromatic compounds and phthalate esters, etc. The analytical results indicated that roof-yard catchments that included the ''first flush'' usually provided safe drinking water with low organic contents, even for rainwater collected immediately after rainfall. In contrast, rainwater harvested from road surfaces had poor quality with respect to the organic constituents, regardless of stored time.
City eying home water-recycling technology; uses bath and washer water for irrigation., (ReWater Systems' equipment for greywater irrigation): This is an article from: San Diego Business Journal [HTML] (Digital) available online in digital format. I have not (yet) reviewed it -- DF

Onsite Wastewater Disposal Books

Onsite Wastewater Disposal, R. J. Perkins; Quoting from Amazon: This practical book, co-published with the National Environmental Health Association, describes the step-by-step procedures needed to avoid common pitfalls in septic system technology. Valuable in matching the septic system to the site-specific conditions, this useful book will help you install a reliable system in both suitable and difficult environments. Septic tank installers, planners, state and local regulators, civil and sanitary engineers, consulting engineers, architects, homeowners, academics, and land developers will find this publication valuable.
Onsite Wastewater Treatment Systems, Bennette D. Burks, Mary Margaret Minnis, Hogarth House 1994 - one of the best septic system books around, suffering a bit from small fonts and a weak index. While it contains some material more technical than needed by homeowners, Burks/Minnis book on onsite wastewater treatment systems a very useful reference for both property owners and septic system designers.
Septic Tank/Soil-Absorption Systems: How to Operate & Maintain [ copy on file as /septic/Septic_Operation_USDA.pdf ] - , Equipment Tips, U.S. Department of Agriculture, 8271 1302, 7100 Engineering, 2300 Recreation, September 1982, web search 08/28/2010, original source: http://www.fs.fed.us/t-d/pubs/pdfimage/82711302.pdf
Soil Percolation Tests soil perc testing guide and instructions
Percolation Testing Manual, CNMI Division of Environmental Quality, PO Box 501304, Saipan, MP 96950
Planting Over Septic System Component", Daniel Friedman (author/editor, InspectAPedia.com), The Innovator, Winter/Spring 2008, BCOSSA, British Columbia OnSite Sewage Association, 201-3542 Blansard St., Victoria BC V8X 1W3 Canada
Save the Septic System - Do Not Flush These Items Down the Toilet, Daniel Friedman, InspectAPedia.com - PDF document, printable
SEPTIC STANDARDS
SEPTIC MAGAZINES
Septic System Owner's Manual, Lloyd Kahn, Blair Allen, Julie Jones, Shelter Publications, 2000 $14.95 U.S. - easy to understand, well illustrated, one of the best practical references around on septic design basics including some advanced systems; a little short on safety and maintenance. Both new and used (low priced copies are available, and we think the authors are working on an updated edition--DF. Quoting from one of several Amazon reviews: The basics of septic systems, from underground systems and failures to what the owner can do to promote and maintain a healthy system, is revealed in an excellent guide essential for any who reside on a septic system. Rural residents receive a primer on not only the basics; but how to conduct period inspections and what to do when things go wrong. History also figures into the fine coverage.
Test Pit Preparation for Onsite Sewage Evaluations, State of Oregon Department of Environmental Quality, Portland OR, 800 452-4011. PDF document. We recommend this excellent document that offers detail about soil perc tests, deep hole tests, safety, and septic design. Readers should also see Soil Percolation Tests and for testing an existing septic system, also see Dye Tests
Grass is Always Greener Over the Septic Tank, Bombeck, Erma: $ 5.99; FAWCETT; MM; This septic system classic whose title helps avoid intimidating readers new to septic systems, is available new or used at very low prices. It's more entertainment than a serious "how to" book on septic systems design, maintenance, or repair. Not recommended -- DF.
US EPA Onsite Wastewater Treatment Systems Manual Top Reference: US EPA's Design Manual for Onsite Wastewater Treatment and Disposal, 1980, available from the US EPA, the US GPO Superintendent of Documents (Pueblo CO), and from the National Small Flows Clearinghouse. Original source http://www.epa.gov/ORD/NRMRL/Pubs/625R00008/625R00008.htm
Water Wells and Septic Systems Handbook, R. Dodge Woodson. This book is in the upper price range, but is worth the cost for serious septic installers and designers. Quoting Amazon: Each year, thousands upon thousands of Americans install water wells and septic systems on their properties. But with a maze of codes governing their use along with a host of design requirements that ensure their functionality where can someone turn for comprehensive, one-stop guidance? Enter the Water Wells and Septic Systems Handbook from McGraw-Hill.
Written in language any property owner can understand yet detailed enough for professionals and technical students this easy-to-use volume delivers the latest techniques and code requirements for designing, building, rehabilitating, and maintaining private water wells and septic systems. Bolstered by a wealth of informative charts, tables, and illustrations, this book delivers:
* Current construction, maintenance, and repair methods
* New International Private Sewage Disposal Code
* Up-to-date standards from the American Water Works Association
Wells and Septic Systems, Alth, Max and Charlet, Rev. by S. Blackwell Duncan, $ 18.95; Tab Books 1992. We have found this text very useful for conventional well and septic systems design and maintenance --DF. Quoting an Amazon description:Here's all the information you need to build a well or septic system yourself - and save a lot of time, money, and frustration. S. Blackwell Duncan has thoroughly revised and updated this second edition of Wells and Septic Systems to conform to current codes and requirements. He also has expanded this national bestseller to include new material on well and septic installation, water storage and distribution, water treatment, ecological considerations, and septic systems for problem building sites.
The NSFC Products List has an excellent list of design manuals/modules available from their website or by telephone 800-624-8301
Submissions welcome. send us a suggested document link or request an exchange of website links
...

Carson, Dunlop & Associates Ltd., 120 Carlton Street Suite 407, Toronto ON M5A 4K2. Tel: (416) 964-9415 1-800-268-7070 Email: info@carsondunlop.com. The firm provides professional home inspection services & home inspection education & publications. Alan Carson is a past president of ASHI, the American Society of Home Inspectors. Thanks to Alan Carson and Bob Dunlop, for permission for InspectAPedia to use text excerpts from The Home Reference Book & illustrations from The Illustrated Home. Carson Dunlop Associates' provides extensive home inspection education and report writing material.
- The Illustrated Home illustrates construction details and building components, a reference for owners & inspectors.
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- TECHNICAL REFERENCE GUIDE to manufacturer's model and serial number information for heating and cooling equipment, useful for determining the age of heating boilers, furnaces, water heaters is provided by Carson Dunlop, Associates, Toronto - Carson Dunlop Weldon & Associates
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The Home Reference Book - the Encyclopedia of Homes, Carson Dunlop & Associates, Toronto, Ontario, 25th Ed., 2012, is a bound volume of more than 450 illustrated pages that assist home inspectors and home owners in the inspection and detection of problems on buildings. The text is intended as a reference guide to help building owners operate and maintain their home effectively. Field inspection worksheets are included at the back of the volume.

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Building inspection education & report writing systems from Carson, Dunlop & Associates Ltd
Commercial Building Inspection Courses - protocol ASTM Standard E 2018-08 for Property Condition Assessments
Home Inspection Education Courses including home study & live classes at eleven colleges & universities.
Home Inspection Education Home Study Courses - ASHI@Home Training 10-course program.

Special Offer: Carson Dunlop Associates offers InspectAPedia readers in the U.S.A. a 5% discount on these courses: Enter INSPECTAHITP in the order payment page "Promo/Redemption" space. InspectAPedia.com editor Daniel Friedman is a contributing author.
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