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Small Diameter Effluent Systems

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National Small Flows Clearinghouse Product WWVTPE04 Small Diameter Effluent Systems A small diameter effluent sewer (SDES) collects effluent from septic tanks at each service connection and transports it by gravity to a treatment plant or a conventional sewer. Synonyms include small diameter gravity sewers, septic tank effluent drains, and small bore sewers. The volume of septic tanks is often 1,000 gallons, but varies widely.

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Small Diameter Effluent Systems. National Small Flows Clearinghouse. Internet Archive · FedFlix.

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