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 Mobile ViewSEPTIC SYSTEM INSPECT DIAGNOSE REPAIR SEPTIC SYSTEM BASICS Septic Guide for Home Buyers or Owners Septic or Sewer Connection? Septic System Design Septic System Designs Master List Septic Inspection Testing Septic Maintenance Repair Septic Component & Product Suppliers Septic Videos ADDITIVES / TREATMENTS for SEPTIC SYSTEMS AEROBIC SEPTIC SYSTEMS ALTERNATING BED SEPTIC SYSTEMS BACKUP PREVENTION, SEPTIC BACKUP PREVENTION, SEWER LINE BACKWATER VALVES, SEWER LINE BIOLOGICAL POLLUTANTS BOOKS, RECOMMENDED SEPTIC BOOKSTORE, SEPTIC SYSTEMS CESSPOOLS CESSPOOL SAFETY WARNINGS CHECK VALVES, WATER SUPPLY CHEMICALS & TREATMENTS for SEPTICS CHLORAMINE / CHLORINE Tests CHLORINE IN DRINKING WATER CHLORINE IN SEPTIC WASTEWATER CISTERNS CLOGGED DRAIN DIAGNOSIS & REPAIR D BOX TROUBLESHOOTING DEFINITIONS OF SEPTIC SYSTEM TERMS DIFFICULT SEPTIC SITES DISTRIBUTION-BOX INSPECTION, SEPTIC DRAINFIELD FAILURE DIAGNOSIS DRIVING or PARKING OVER SEPTIC DRYWELL DESIGN & USES EFFLUENT RETENTION TIME FILTERS SEPTIC & GREYWATER FLOOD DAMAGE ASSESSMENT, SAFETY & CLEANUP FLOODED SEPTIC SYSTEMS, REPAIR GARBAGE DISPOSAL vs SEPTICS GRAVELLESS SEPTIC SYSTEMS GRAVITY/SIPHON DOSING SYSTEMS GREYWATER SYSTEMS HOME BUYERS GUIDE to SEPTIC SYSTEMS HOME SELLERS GUIDE TO SEPTIC INSPECT LAGOON SEPTIC SYSTEMS LEACHFIELD FAILURE DIAGNOSIS MEDIA FILTER SEPTIC SYSTEMS MOUND SEPTIC SYSTEMS NOISE / SOUND DIAGNOSIS & CURE ODORS & SMELLS DIAGNOSIS & CURE ODOR DIAGNOSIS CHECKLIST ODORLESS CHEMICALS / GASES: CHECK FOR? ODORS, PLUMBING SYSTEM ODORS, SEPTIC or SEWER ODORS, SULPHUR SMELL SOURCES OUTHOUSES & LATRINES PLANTS & TREES OVER SEPTIC SYSTEMS PRESSURE DOSING SEPTIC SYSTEMS RAISED BED SEPTIC SYSTEMS SAND BED SEPTIC SYSTEMS SEEPAGE PITS SEPTIC & CESSPOOL SAFETY SEPTIC SYSTEM ARTICLES SEPTIC AUTHORITIES, DESIGN REGS SEPTIC BACKUP PREVENTION SEPTIC BACKUP REPAIR SEPTIC BOOK, FREE ONLINE SEPTIC BOOKSTORE SEPTIC BIOMATS SEPTIC CARE INSTRUCTIONS SEPTIC CLEARANCE DISTANCES SEPTIC CODES & REFERENCES SEPTIC CONSULTANTS SEPTIC DRAINFIELD FAILURE DIAGNOSIS SEPTIC DRAINFIELD INSPECTION & TEST SEPTIC DRAINFIELD LIFE SEPTIC DRAINFIELD LOCATION SEPTIC DRAINFIELD RESTORERS? SEPTIC DRAINFIELD SIZE SEPTIC DRAINFIELD SHAPE SEPTIC DRAWINGS SEPTIC DYE TEST PROCEDURE SEPTIC FAILURE LAWSUIT SEPTIC FAILURE SIGNS SEPTIC FIELD INSPECTION SEPTIC FILTERS SEPTIC FLOOD RESPONSE SEPTIC HOLDING TANKS SEPTIC INSPECTION & TEST GUIDE SEPTIC SYSTEM INSPECTION CLASS SEPTIC LIFE EXPECTANCY SEPTIC LIFE MAXIMIZING STEPS SEPTIC METHANE GAS SEPTIC ODORS SEPTIC PUMPS SEPTIC PUMPING REPAIR SEPTIC REFERENCES SEPTIC & CESSPOOL SAFETY SEPTIC SUPPLIES & PARTS SEPTIC SYSTEM DEFINITIONS SEPTIC SYSTEM DESIGN ALTERNATIVES Master List of Septic System Types ALTERNATIVE SEPTIC DESIGNERS ALTERNATIVE SEPTIC PRODUCTS AEROBIC SEPTIC SYSTEMS ALTERNATING BED SEPTIC SYSTEMS BIOGAS PRODUCTION & USE CESSPOOLS DISINFECTION SYSTEMS, SEPTIC EFFLUENT DRYWELL DESIGN & USES EVAPORATION-TRANSPIRATION SEPTIC SYSTEMS FILTERS SEPTIC & GREYWATER FIXED-FILM PROCESS SEPTIC SYSTEMS GRAVELLESS SEPTIC SYSTEMS GRAVITY/SIPHON DOSING SYSTEMS GREYWATER SYSTEMS HOLDING TANK SEPTIC SYSTEMS LAGOON SEPTIC SYSTEMS MEDIA FILTER SEPTIC SYSTEMS MOUND SEPTIC SYSTEMS OUTHOUSES & LATRINES PEAT FILTER SEPTICS PRESSURE DOSING SEPTIC SYSTEMS RAISED BED SEPTIC SYSTEMS SAND BED SEPTIC SYSTEMS SEEPAGE PITS SEPTIC SYSTEM PUMPS SEQUENCING BATCH SEPTIC SYSTEMS SEWAGE TREATMENT SYSTEMS STEEP SLOPE SEPTIC DESIGNS TOILETS, INSPECT, INSTALL, REPAIR TOILET ALTERNATIVES TOILET TYPES Toilet Types, Flush Methods TOILETS, DON'T FLUSH LIST TRAPS on PLUMBING FIXTURES VEGETATED SUBMERGED SEPTIC BEDS Wastewater Treatment Levels Wastewater Dispersal Methods WETLAND SEPTIC SYSTEMS SEPTIC SYSTEM DESIGN BASICS DRYWELL DESIGN & USES FILTERS SEPTIC & GREYWATER SEEPAGE PITS SEPTIC CLEARANCES Neighboring Septic System Problems Well Clearances SEPTIC SOIL & PERC TESTS WHAT ARE PERC TESTS PERC HOLE SPECIFICATIONS PERC STANDARDS SEPTIC TANK SIZE SEPTIC TANK SIZE TABLE COMPUTING SEPTIC TANK CAPACITY COMPUTING EXAMPLE SEPTIC TANK DEPTH SEPTIC TANK TEES SEPTIC DRAINFIELD LOCATION SEPTIC DRAINFIELD SIZE Trench Line Specs Detailed Specifications Leach Fields Gravelless Systems Deep Trench Systems Shallow Trench Systems Cut and Fill Systems Absorption Bed Systems SEPTIC DRAINFIELD SHAPE SEPTIC TANK PUMPING FREQUENCY SEPTIC TANK PUMPING PROCEDURE SEPTIC SYSTEM PUMPS SEPTIC TREATMENTS & CHEMICALS STEEP SLOPE SEPTIC DESIGNS SEPTIC SYSTEM, HOME BUYERS GUIDE SEPTIC SYSTEM INSPECTION & TEST GUIDE SEPTIC SYSTEM INSPECTION CLASS SEPTIC SYSTEM INSPECTION LEVELS SEPTIC SYSTEM ODORS SEPTIC SYSTEM DESIGN MANUAL, ONLINE SEPTIC SYSTEM, HOME BUYERS GUIDE SEPTIC SYSTEM SAFETY WARNINGS SEPTIC TANKS SEPTIC TANK BAFFLES SEPTIC TANK COVERS SEPTIC TANK, HOW TO FIND SEPTIC TANK GRASS or SNOWMELT SEPTIC TANK, HOME BUYERS GUIDE SEPTIC TANK INSPECTION PROCEDURE SEPTIC TANK PUMPING PROCEDURE SEPTIC TANK PUMPING REASONS SEPTIC TANK PUMPING SCHEDULE SEPTIC TESTS: DYE & LOADING TESTS SEPTIC TREATMENTS & CHEMICALS SEPTIC BOOKS REFERENCES CODES SEPTIC & CESSPOOL SAFETY SEWAGE & SEPTIC CONTAMINANTS SEWAGE BACKUP, WHAT TO DO SEWAGE BACKUP TEST & CLEANUP SEWAGE BACKUP PREVENTION SEWAGE CONTAMINATION in buildings SEWAGE CONTAMINANTS in FRUIT / VEGETABLES SEWAGE EJECTOR / GRINDER PUMPS SEWAGE LEVELS in SEPTIC TANKS SEWAGE NITROGEN CONTAMINANTS SEWAGE PATHOGENS in SEPTIC SLUDGE SEWAGE PUMPS SEWAGE PUMP CLOG DAMAGE SEWER BACKUP PREVENTION SEWER GAS ODORS SEWER LINE REPLACEMENT SINKHOLES, WARNING SIGNS SMELL PATCH TEST to Track Down Odors SOAKAWAY BED FAILURE DIAGNOSIS SULPHUR & SEWER GAS SMELL SOURCES SUMP PUMPS TOILETS, INSPECT, INSTALL, REPAIR TOILET ALTERNATIVES General Categories of Waterless Camping & Emergency Toilets Chemical Toilets Composting Toilets Disabled or Elderly-Use Toilets Greywater Septic Systems SEPTIC SYSTEM FLOOD REPAIR Incinerator Toilet Systems OUTHOUSES & LATRINES TOILET FLUSHOMETER VALVES TOILET INSTALLATION PROCEDURE TOILET OVERFLOW EMERGENCY TOILET PLUGS, SEWER BACKUP TOILET REPAIR GUIDE TOILET TYPES Toilet Types, Flush Methods TOILETS, DON'T FLUSH LIST TRAPS on PLUMBING FIXTURES TREATMENTS & CHEMICALS, SEPTIC VIDEO GUIDES: Septic Videos WASHING MACHINES & SEPTIC SYSTEMS WASTEWATER TREATMENT BASICS WATER SOFTENERS & CONDITIONERS WATER SUPPLY & DRAIN PIPING WATER TESTS, CONTAMINANTS, TREATMENT WATER TREATMENT EQUIPMENT CHOICES WATER, WELLS, WATER TANKS: TESTING GUIDE WETLAND SEPTIC SYSTEMS WINTERIZE A BUILDING More Information |
The ABCs of septic tank and drainfield design: this septic system design article outlines basic septic system design parameters such as finding the recommended septic tank volume and conventional recommended onsite wastewater soil absorption system (leach field or drainfield) size, along with some notes on how to calculate these from simple water usage and site conditions. 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. SEPTIC SYSTEM DESIGN BASICS - Septic System Design:Choosing Septic Tank Size, Absorption System Size, Basic Design NotesHow to Use this Septic Design GuideFor more in-depth information about septic system design see our list of detailed septic design articles at Septic System Design. Also see the EPA design manual at SEPTIC SYSTEM DESIGN MANUAL, ONLINE. This document and the articles it recommends describe the planning and design of a basic or conventional septic system which uses a septic tank and soil absorption system. Septic system design parameters such as finding the recommended septic tank volume and conventional recommended leach field or drainfield size, along with some notes on how to calculate these from simple water usage and site conditions are discussed here and in our basic design articles. Also take a look at the septic publications listed at Technical Reviewers & References at the end of this article to see septic codes, septic design manuals, and onsite waste disposal standards links and articles. The Basics of Septic System Design: The key articles shown in the page-left links under SEPTIC SYSTEM DESIGN BASICS will allow you to answer basic septic system design questions. If you have no idea what the basic parts of a septic system are, you should take a look at the take a look at HOME BUYERS GUIDE to SEPTIC SYSTEMS. The Details of Septic Designs: A more extensive list of detailed septic planning and design articles available online is provided after the "Basic Advice for Conventional Septic System Design" just below. Difficult septic system installation sites which are rocky, steep, wet, having high groundwater or shallow bedrock, or sites limited in size are likely to require an alternative septic design using special methods and products. For those conditions see the "DESIGN ALTERNATIVES" links at the left of these pages. Basic Specifications & Advicve for Conventional Septic Tank & Drainfield System DesignSeptic Tank Sizing: Most jurisdictions currently want to see a minimum of 1000 gallons. Septic tanks may be approved constructed of concrete, fiberglass, or polyethylene. Site-built septic tanks may still be permitted in some jurisdictions. Any of these materials can work fine for a septic tank provided the tank is properly installed. (Lightweight tanks may need to be anchored to prevent floating up out of the ground when empty.) But the right septic tank size depends on the anticipated usage not an arbitrary number. To determine the required septic tank size you would need to look at the SEPTIC TANK SIZE to see the required tank size based on daily water volume usage and perhaps the WATER QUANTITY USAGE GUIDE article which discusses water usage requirements to confirm that you're estimating the water volume reasonably. Septic tank sizing is explained at SEPTIC TANK SIZE. Septic Tank Location: Articles titled SEPTIC CLEARANCE DISTANCES and WELL CLEARANCES tell you where you can put the tank relative to other site features. Usually the tank is located close to the building for shorter waste line runs and because that's where there is often plenty of backfill to bury a septic tank during construction. Special tank designs are available for problem sites. Septic Tank Retention Time if you just wanted to know our opinion about tank size as a function of effluent retention time, see EFFLUENT RETENTION TIME. Septic leach field or drainfield size and layout planning: see our article SEPTIC DRAINFIELD SIZE which sizes the field based on its percolation rate and our article EPTIC SOIL & PERC TESTS which describes performing a perc test, with perhaps a look at SEPTIC BIOMATS to understand biomats that form below a drainfield and why a leach field in a wet area won't treat the effluent. Standard Leach Field Trench Specifications: conventional "two foot" gravel and perforated pipe absorption trench leach field trench specifications are given here. The typical numbers you'll see for trench design in typical soils with acceptable percolation rate and excluding special and problem sites will look something like this:
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... Technical Reviewers & References
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. SEPTIC SYSTEM DESIGN BASICS - see detailed links at page left
Septic System Design & Installation Details
Design Manuals for Septic Systems
Books & Articles on Building & Environmental Inspection, Testing, Diagnosis, & Repair
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