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SEPTIC SYSTEM INSPECT DIAGNOSE REPAIR

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GARBAGE DISPOSAL vs SEPTICS
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TOILETS, INSPECT, INSTALL, REPAIR
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TOILETS, DON'T FLUSH LIST
  NEVER FLUSH INTO SEPTICS
  BETTER NOT TO FLUSH
  HOUSEHOLD CHEMICALS
  OTHER CHEMICALS
  CHLORINE IN DRINKING WATER
  CHLORINE IN SEPTIC WASTEWATER
  DISHWASHERS vs SEPTICS
  DRUGS INTO the SEPTIC TANK?
  GARBAGE GRINDERS vs SEPTICS
  REDUCE IMPACT of SOFTENER on SEPTIC
  REVERSE OSMOSIS CONCENTRATE DISPOSAL
  SEWAGE PUMP CLOG DAMAGE
  WASHING MACHINES & SEPTIC SYSTEMS
  * NO FLUSH SUMMARY LIST

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More Information

Do not flush drugs down the toilet (C) Daniel FriedmanSeptic Tank Maintenance: What Can or Cannot Be Flushed into a Septic Tank - Septic Tank Maintenance and Cleaning Advice
InspectAPedia®  -      

  • Complete guide to what is OK or NOT-OK to flush down the toilet and into your septic tank
  • Questions & answers about what things harm the septic system if flushed down toilets or other building drains

What items and chemicals are safe and what items are not safe to flush down the toilet and into a private septic system? What may damage the septic tank or leach fields? This document explains how to extend the life of the septic system by being careful about what goes into it.

InspectAPedia tolerates no conflicts of interest. We have no relationship with advertisers nor with topics or services discussed at this website.

© Copyright 2012 InspectAPedia.com, All Rights Reserved. Information Accuracy & Bias Pledge is at below-left. Use page top links to major topics or use links at the left of each page to navigate within topics and documents at this website. Green links show where you are in a document series or at this website.

What Solids, Liquids, Chemicals, Treatments & Other Stuff Should Not be Flushed Down Toilets or Other Building Drains?

Citation of this article by reference to this website and brief quotation for the sole purpose of review are permitted. Use of this information at other websites, in books or pamphlets for sale is reserved to the author. Technical review, content suggestions, critique are welcomed and are listed at "References."NO FLUSH SUMMARY LIST provides a free printer-friendly list of things to avoid flushing down the toilet.

This article is a section of our online book SEPTIC INSPECTION & TEST GUIDE whose chapters are shown at the left of this page. Citation of this article by reference to this website and brief quotation for the sole purpose of review are permitted. Use of this information at other websites, in books or pamphlets for sale is reserved to the author. Technical review by industry experts has been performed and comments from readers are welcomed. Contributors are listed at the end of each article.

Diapers, sanitary napkins, tampons, photo chemicals, cleaners, garbage and even toys which find their way into building toilets and drains risk clogging the drain piping, distribution piping, or the septic tank baffles. In the photo at left, the inspector pointed to the bottle of acid and wondered how much photo chemical had gone into the septic system and worried about what that might mean for the health of the leach field.

Even if the septic drainfield field appeared to be "working" it might not be properly treating the septic effluent. It's best to keep diapers, sanitary napkins, chemicals, and the like out of your building drains and toilets. Garbage disposers also increase the solid waste load on septic tanks and may require that the tank be pumped more often.

Diapers, toys, garbage which find their way into building toilets and drains clog drain piping, distribution piping, or septic tank baffles and fields. Keep diapers, tampons, sanitary napkins, household chemicals, and the like out of building drains and toilets.

Garbage disposers also increase the solid waste load on septic tanks and may require that the tank be pumped more often.

Detailed advice on what is ok or not ok to flush down your drains is given by the following detailed articles:

  • TOILETS, DON'T FLUSH LIST
  • NEVER FLUSH INTO SEPTICS - a list of the absolute "no-no's of things not to put down a drain or into a toilet.
  • BETTER NOT TO FLUSH - things that you'd be better off not flushing down the drains
  • HOUSEHOLD CHEMICALS - what household chemicals & cleaners are "ok" or "not OK" to put down drains
  • OTHER CHEMICALS - other chemicals to keep out of septic systems
  • CHLORINE IN DRINKING WATER - is this a problem for the septic system?
  • CHLORINE IN SEPTIC WASTEWATER - where else does chlorine come from in a septic tank?
  • DISHWASHERS vs SEPTICS - what is the effect on a septic system when we use a dishwasher
  • DRUGS INTO the SEPTIC TANK? - what is the effect on the septic tank and drainfield if we dump unwanted drugs into the system?
  • GARBAGE GRINDERS vs SEPTICS - is it OK to use a garbage disposal system at a house with a septic tank?
  • REVERSE OSMOSIS CONCENTRATE WASTE DISPOSAL - what are the effects on the septic system of RO waste water concentrate
  • SEWAGE PUMP CLOG DAMAGE - what things will clog or burn up a sewage pump - keep these out of your drains
  • TOILET TISSUE CHOICES - is toilet paper a problem in septic tanks? Should we be using special bio-degradable toilet paper?
  • WASHING MACHINES & SEPTIC SYSTEMS - what is the effect on the septic tank and drainfield if we use a washing machine?
  • WATER SOFTENERS & CONDITIONERS - do water softeners harm the septic tank or drainfield? Is water softener salt a problem for the septic system?
  • ** NO FLUSH SUMMARY LIST ** - printer friendly list of things that should not be flushed down the toilet

Frequently Asked Questions (FAQs) about things that should not be flushed down drains nor into septic systems

Question: flushing toys into drains or septic systems?

can you flush toys? - Deepesh

Reply: of course not

No deepesh, I can't imagine any toy that can safely be flushed down a toilet. For example, plastics won't biodegrade in the septic tank and any toys flushed down a drain risk clogging piping. At TOILETS, DON'T FLUSH LIST you will find a more complete list of stuff to keep out of toilets, drains, and septic tanks or sewers.

Question: how much water would be "too much" water to be flushed into a septic system

"Water in large quantities"

What would be a "large quantity"?
1 gallon? 2 gallons? Swimming pool? - Tim

Reply: Water volumes that exceed the design load for septic system - x gallons/day

Tim,

About "how much water is too much for a septic system to handle?", let's be reasonable. Posed by your question, a gallon of water would hardly be a "large" quantity since that's less than some toilet flushes. And a bath tub or shower use typically consume 30-50 gallons of water. A typical home septic system is designed to accept a daily wastewater load of 100-200 gallons per person in a household.

What can flood a septic drainfield and/or even damage a septic effluent dosing system are water volumes that exceed the anticipated daily design load. Examples of "large quantities of water" that damage septic system are most often found where equipment is malfunctioning:

- a water softener stuck in "regen" cycle can pump water continuously into the septic system, hundreds of gallons a day added to the normal load

- leaky toilets and other fixtures might, depending on flow rate, also flood the system

- putting together a local laundromat and connecting it to a typical residential septic system would flood and overload the system

- failing to keep groundwater away from the septic tank or drainfield flood the system and lead to its failure.

About a swimming pool, I'm doubtful that anyone would try emptying a swimming pool into a septic system, but indeed, I have seen failed drainfields that were saturated when a homeowner repeatedly emptied pool filter backwash waters and annual swimming pool drain-out waters directly onto the septic drainfield or soakaway bed.

Thanks for asking - these are important clarifications.

Question: What's the difference between "never flush" and "better not flush" categories of building drain and septic system care warnings?

Why are some of these items "never" and others "better not". I don't understand the distinction?

Also, why did deepesh ask about flushing toys down the toilet? Deepesh, do you really have no other way of disposing of them?

- Randy

Reply: Definition of "never flush" and "better not flush" drain dumping and septic system protection categories

Randy: good question. Thanks for asking for this clarification on the difference between NEVER FLUSH and BETTER NOT FLUSH things into a septic tank.

Having researched various expert sources on septic tank and system care as well as having investigated septic system failures, in my OPINION some materials are very harmful and likely to cause costly damage if flushed down drains and into septic tanks and drainfields, while others may also contaminate groundwater, nearby wells, and the environment. Those items go into the NEVER FLUSH INTO SEPTICS category of things to keep out of drains and septic systems.

Other items, like cigarette butts, do not biodegrade in the septic tank, and can possibly contribute mass to a clog or blockage in a drain, but their individual size and anticipated plausible volume of occurrence in a septic tank is so small as unlikely to actually damage the tank. Rather they add non-biodegradable mass that has to be removed when the tank is pumped. These are a bad idea - they risk remaining in the waste chain, even being spread in sludge on a field somewhere where they still don't biodegrade - but as their probability of causing rapid or expensive damage to the septic system is much less or even nil, I put these into the BETTER NOT TO FLUSH category.

At TOILETS, DON'T FLUSH LIST our summary page for this topic, and among the links at page left under that heading, you'll see a series of articles that explain the hazards of dumping or spilling various materials into drains and into septic systems.

Questions & Answers regarding this article

Questions & answers about what things harm the septic system if flushed down toilets or other building drains

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  • InspectAPedia.com® - Daniel Friedman - Publisher & Editor.
  • InspectAPedia Bookstore lists recommended books, organized by topic & available for purchase. Most of our articles also list books on the specific article topic as well as other references, and information sources.
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  • Additional technical contributors & reference sources for this article are listed below.

Use links just below or at the left of each page to navigate this document or to view other topics at this website. Green links show where you are in our document or website.

TOILETS, DON'T FLUSH LIST - see detailed links above & at page left

  • "Save the Septic System - Do Not Flush These Items Down the Toilet", Daniel Friedman, InspectAPedia.com - PDF document, printable reference card
  • Additives & Chemicals: Septic System Maintenance - Are they even needed? Are they even legal?
  • Biomat Formation in the Septic System Drainfield Absorption System - what leads to drain field clogging and expensive drainfield repairs
  • Buyer's Guide to Septic Systems - what to do when buying a home with a septic tank
  • Cesspools Home Buyer's or Owner's Advice
  • Cheating on Water Tests - (Chlorine in Wells and Septics) Testing Water for Real Estate Transactions - Water Test Cheating Warnings for Home Buyers and Home Inspectors
  • Clogged Drain Diagnosis - is the problem the septic system or the Building drain system?
  • DRYWELL DESIGN & USES Home Buyer's or Owner's Advice
  • Contamination in buildings how to test buildings for bacterial contamination from Sewage and Septic backup, remediation, & references
  • Leach Field Inspection Procedure Septic Leach Fields - how to inspect and diagnose septic drainfield failures - what causes septic field failure?
  • Maintenance: Ten Steps to Keeping a Septic System Working, suggestions from the U.S. EPA, edits and additions by DJF
  • Septic Systems Inspection, Testing, & Maintenance Book - online textbook: how to inspect, maintain, repair septics
  • Septic Tank Pumping Guide: When, Why, How to pump the septic tank
  • Septic Tank Location - How to Find the Septic Tank, how deep will the cover be, how to document its location
  • Sewage Pump Clog Damage - list of items that clog and damage or destroy different types of sewage pumps, grinder pumps, and ejector pumps
  • Sewage & Septic Backups and what to do about sewage spillage in buildings
  • Tank Location - How to Find the Septic Tank, how deep will the cover be, how to document its location
  • Tank Pumping Frequency Guide for Septic Tanks: When, How, What to Watch For when pumping or cleaning septic tanks
  • Water Usage: Capacity: Determining Needed Septic Capacity - Typical residential water usage for people, appliances, and activities.
  • Watts Industries of North Andover, Mass., provides its ZRO-4 under counter system intended to target the independent water dealer market.
  • What is a Septic System An Engineer's View & Septic System FAQ's
  • ...
  • Percolation Testing Manual, CNMI Division of Environmental Quality, Gualo Rai, Saipan provides an excellent English Language manual guide for soil percolation testing. Original source: www.deq.gov.mp/artdoc/Sec6art108ID255.pdf
  • Soil Test Pit Preparation, fact sheet, Oregon DEQ Department of Environmental Quality, original source www.deq.state.or.us/wq/pubs/factsheets/onsite/testpitprep.pdf The Oregon DEQ onsite water quality program can be contacted at 811 South Ave, Portland OR 97204, 800-452-4011 or see http://www.oregon.gov/DEQ/
  • Thanks to reader Michael Roth for technical link editing 6/29/09.
  • Septic Tank Pumping Guide: When, Why, How to pump the septic tank
  • Septic Tank Capacity vs Usage in Daily Gallons of Wastewater Flow, calculating required septic tank size, calculating septic tank volume from size measurements
  • 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.
  • Septic System Drainfield Absorption System Biomat Formation - what leads to drain field clogging and expensive drainfield repairs
  • Ten Steps to Keeping a Septic System Working, suggestions from the U.S. EPA, edits and additions by DJF
  • Pennsylvania State Fact Sheets relating to domestic wastewater treatment systems include
    • Pennsylvania State Wastewater Treatment Fact Sheet SW-161, Septic System Failure: Diagnosis and Treatment
    • Pennsylvania State Wastewater Treatment Fact Sheet SW-162, The Soil Media and the Percolation Test
    • Pennsylvania State Wastewater Treatment Fact Sheet SW-l64, Mound Systems for Wastewater Treatment
    • Pennsylvania State Wastewater Treatment Fact Sheet SW-165, Septic Tank-Soil Absorption Systems
    • Document Sources used for this web page include but are not limited to: Agricultural Fact Sheet #SW-161 "Septic Tank Pumping," by Paul D. Robillard and Kelli S. Martin. Penn State College of Agriculture - Cooperative Extension, edited and annotated by Dan Friedman (Thanks: to Bob Mackey for proofreading the original source material.)
  • ...

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.
  • 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.

 


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