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SEPTIC SYSTEMS HOME
SEPTIC INFO ARTICLES
  Info for Home Buyers or Owners
  Septic System Design
  Septic Inspection Testing
  Septic Maintenance Repair
HOME BUYERS GUIDE to SEPTIC SYSTEMS
  1-INTRODUCTION
  2-YOU NEED TO KNOW AND DO
  3-SEPTIC SYSTEM COMPONENTS
  4-WHAT GOES WRONG
    4-1 TANK FAILURES
    4-2 PIPING FAILURES
    4-3 LEACH FIELD FAILURES
    4-4 OTHER SEPTIC TROUBLE SIGNS
  5-HOW TO INSPECT & TEST
  6-FINAL OVERVIEW
  SEPTIC FAILURE LAWSUIT
SEPTIC SYSTEMS ONLINE BOOK
SEPTIC PUMPING REPAIR
SEPTIC TREATMENTS
SEPTIC CONSULTANTS
SEPTIC AUTHORITIES
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SEPTIC SYSTEM DESIGN MANUAL - Online
SEPTIC SYSTEM DESIGN BASICS
SEPTIC SYSTEM DESIGN ALTERNATIVES
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LARGER VIEW of this COLLAPSING home made septic tank built using concrete blocks - an expert can find clues and perform tests that reduce risk of a costly surprise

Home Buyer's Detailed Guide to Septic Tank Failures
InspectAPedia®  -    

  • Chapter 4 - What Goes Wrong With Septic Systems
  • Advice for buyers of a home with a septic system - what to do
Our site offers impartial, unbiased advice without conflicts of interest. We will block advertisements which we discover or readers inform us are associated with bad business practices, false-advertising, or junk science. Our contact info is at InspectAPedia.com/appointment.htm.

This chapter describes what goes wrong with septic tanks, drainfields, and other septic system components. Septic backups, failures, breakouts, odors: 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.

Chapter 4 in this file outlines what goes wrong with septic systems and their various components. Chapter 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.

© Copyright 2009 Daniel Friedman, All Rights Reserved. Information Accuracy & Bias Pledge is at below-left. Use the links at page left to navigate this document or to go to Other Website Topics. Green links at left show where you are in our document & website.

4-WHAT GOES WRONG with septic systems, tanks, and leaching beds?

4-1 TANK FAILURES - Septic Tank Failures

PHOTO of a septic seepage pit collapse when a truck drove over it.Do not drive over the septic tank or septic piping.

Unless special provisions have been made such as protection of piping and septic tanks from damage, vehicle-rated septic tank covers, or similar steps, do not drive vehicles over the septic system.

Driving over septic tanks, septic piping, or drainfields risks costly damage to the septic system and may also be dangerous.

The bulldozer in our photo (left) was called to help remove a truck which drove over septic system components leading to a surprise collapse.

Photograph of a collapsing, impacted, failed home made septic tank.Home made or "site built" septic tanks, often using dry-stacked concrete blocks or even stone can collapse, a fatal hazard if someone falls in.

The septic tank shown in the photo at the top of this page had a concrete cover but when the cover was removed we found that the tank was under-sized, built of concrete blocks, and totally impacted with waste, as shown in this open septic tank photo. The system was inadequate, not working, and required replacement.

A proper loading and dye test would probably have detected this failure since the new owners had effluent in their yard within 24 hours of moving into the home. Home made septic tanks which are way too small, such as the 100-gallon home made septic tank shown in the upper left of this photo of a too-small septic tank will simply not be functional for normal use.

Photograph of a collapsing, failed steel septic tank. Steel septic tank baffles rust off, sending solids into the leach field, shortening its life. A steel tank baffle is visible in the lower left of this photo.

Steel septic tanks rust out and collapse, often sending solids into the leach field and reducing its future life as well. Tank covers themselves can also collapse, especially if made of steel as shown in the same photo as mentioned above.

Other septic tank covers may be made of wood which eventually rots and collapses. Collapsing septic tanks, steel, home made, or any type, are very dangerous. Falling into a tank is likely to be fatal.

Photograph of a collapsing, failed steel septic tank.

Concrete septic tanks such as shown here are pretty durable but they can crack and leak or may have an unsafe cover. The tank shown in this photo is being installed at a new home.

The distribution box has not been placed and is still sitting atop the septic tank. This is a great time to measure and record the exact location of the septic tank and its cleanout access covers.



    Concrete tank baffles can deteriorate, crack, break, fall off. Baffles are checked when the septic tank is opened for cleaning.

Photograph of a collapsing, failed steel septic tank.

Fiberglass or plastic septic tanks such as shown here are also quite durable but may be cracked or damaged during installation or if driven-over later.

  • Septic Tanks which are not pumped often enough can become filled with sludge and scum, becoming totally impacted. Well before this condition is detected, such systems have sent solids into the leach field, shortening its life. See "Septic Tank Pumping Frequency Guide for septic tanks: when, how, what to watch for when pumping or cleaning septic tanks"

Diagnosing Clogged Drains: A First Step for Homeowners
Don't Flush these things into a septic system
Tank Location - How to Find the Septic Tank, how deep will the cover be, how to document its location

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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.

HOME BUYERSGUIDE
1-INTRODUCTION
2-YOU NEED TO KNOW AND DO
3-SEPTIC SYSTEM COMPONENTS
4-WHAT GOES WRONG
    4-1 TANK FAILURES
    4-2 PIPING FAILURES
    4-3 LEACH FIELD FAILURES
    4-4 OTHER SEPTIC TROUBLE SIGNS
5-HOW TO INSPECT & TEST
  5-1. ASK ABOUT THE SYSTEM
  5-2. VISUAL INSPECTION
  5-3. LOADING & DYE TEST
    WHAT'S A DYE TEST?
    TEST LIMITATIONS
    FLOODING TESTS
    PROBE TESTS
  5-4. PUMP THE TANK
  5-5. ADDED INVESTIGATIONS
  5-6. ASK OUTSIDERS
  6-FINAL OVERVIEW
  SEPTIC FAILURE LAWSUIT

More Reading: (In order of increasing detailed explanation)
Diagnosing Clogged Drains: A First Step for Homeowners
Don't Flush these things into a septic system
What Goes Wrong with Septic Systems? in the Home Buyer's Detailed Guide to Septic Systems - Buying a Home With a Septic Tank
SEPTIC FAILIURE CAUSES in our Online Septic Book - Details Address: How Does Each Septic System Component Fail? - What to Look For During a Septic Inspection - Step by Step Diagnosis
Sewer Line Replacement diagnosing a clogged drain leads to drain line replacement - step by step photo-illustrated guide to drain replacement

Original Source Credits

Portions of the original text were provided by the CT Department of Public Health and Addiction Services. Daniel Friedman (web author) has made extensive edits and content additions to the original file.

SEPTIC SYSTEMS HOME
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