Graveless Septic System
| A 1,000 gallon cement septic tank is installed behind the house, on its downhill side, but still in an area that is accessible for future repairs.
This particular graveless septic system uses polystyrene-wrapped perforated pipe that are hooked together and buried and stretched across 350 feet of septic fields. See A Homeowners Guide to Septic Systems (pdf download). The rate of clogging (of such a system) depends on usage, soil characteristics, maintenance of the septic tank (frequent pumping extends drain field life), and what is put into the wastewater (salts, grease, or other products that reduce drainfield life). |
Location of the 1,000 gallon cement septic tank: behind the garage retaining wall on the left side of the deck (as you are facing the mountains). |
![]() The septic fields run horizontally across the property from north to south in two long strips for a total of 350 ft. |
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![]() This view shows the depth of the ditches where the polystyrene-wrapped perforated piping is laid. |
Polystyrene-wrapped Perforated Piping
![]() Closeup of polystyrene-wrapped perforated piping for the graveless septic system. |
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![]() The piping comes in sections like you see above. |
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EKR Publications • Post Office Box 178 • Walland, TN 37886