4" Sewer Line
4" Sewer Line
(OP)
I'd like to see some experiences and opinions on the following question. What is the maximum distance a septic tank should be placed away from a building while utilizing a 4" SDR-35 pipe with 1/4 inch per foot slope?
We haven't encountered any maximum distances before and New York State doesn't specify anything. We designed a system last year and we're trying to see if we placed the septic tank too far from the building. The building referenced has a design flow of 480 gpd and is an Operations and Maintenance building.
We haven't encountered any maximum distances before and New York State doesn't specify anything. We designed a system last year and we're trying to see if we placed the septic tank too far from the building. The building referenced has a design flow of 480 gpd and is an Operations and Maintenance building.





RE: 4" Sewer Line
You have a 2% slope which is adequate for the application.
One would expect that you should be able to place the septic tank 200-250 feet away without difficulty. If you have concerns, you can install additional cleanouts.
RE: 4" Sewer Line
RE: 4" Sewer Line
RE: 4" Sewer Line
RE: 4" Sewer Line
We believe the frost caused the pipe to freeze in the 12-18" cover area. The pipe wasn't insulated or encased in a SCH-80 pipe for protection. There was an approximate 40' section of solid ice in the pipe. Thus, they could flush their toilets.
RE: 4" Sewer Line
RE: 4" Sewer Line
Richard A. Cornelius, P.E.
WWW.amlinereast.com