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SEPTIC SYSTEM INSPECT DIAGNOSE REPAIR
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TOILETS, INSPECT, INSTALL, REPAIR
TRAPS on PLUMBING FIXTURES
TREATMENTS & CHEMICALS, SEPTIC
VIDEO GUIDES: Septic Videos
WATER CONSERVATION MEASURES
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WATER, WELLS, WATER TANKS: TESTING GUIDE
WASHING MACHINES & SEPTIC SYSTEMS
WASTEWATER TREATMENT BASICS
WINTERIZE A BUILDING
Septic tank location guide: this document provides procedures for finding a septic tank by considering what locations are possible.
This article tells us how to locate a septic tank when it's placement is not already known or when the location of the septic tank is not visually obvious. Videos showing how to find the septic system, septic tank, & septic drainfield are at SEPTIC VIDEOS. Also see SEPTIC DRAINFIELD LOCATION - how to find the leach fields.
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The photo at page top shows a terrible way to find the septic tank - by driving over it and getting stuck. A survey of a building site for locations that could reasonably be expected to house a septic tank or drainfield is a useful step in understanding where septic components could be buried.
POSSIBLE TANK LOCATIONS - Site Conditions Determine Possible Septic Tank Locations
If you have no idea what a septic system is, see the "More Reading" articles below. If you have a general picture of what the typical septic system components are, how big they are, and how they are connected together, you can have a reasonable idea about where these items might even fit at a property.
Everywhere else was thick with trees and also was swampy. The septic system tank and fields were almost certainly going to be in this (improperly prepared) mounded area.
Look in the distant photo at the original grade and you'll see that the contractor put the mound in a natural swale which turned out to be a natural creek - the system lacked sufficient fill soil - effluent moved from the leach field to the stream the contractor had buried, and simply appeared at the end of the mound. But that's another story.
Look around the building site with these septic tank location tips in mind
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Frequently Asked Questions (FAQs) about how to find the septic tank
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Technical Reviewers & References
Design Manuals for Septic Systems
Onsite Wastewater Disposal Books