New construction: any alternative to a sewage pump?

[Karl Kaminski]

Hey folks- I'm building a small home next to an existing septic field. Site has a 70' run to the septic tank. Problem is, 18" of pitch (1/4" per ft) places the sewer outlet near the top of the foundation- with no room to pitch the plumbing under the house.

I think the only solution is to run the house waste lines to the necessary location on the foundation wall, and install a sewage pump outside the foundation. At that point, the pump to septic tank will be an almost level run.

Is there another solution I'm missing?

 

[Reach4]

Hey folks- I'm building a small home next to an existing septic field. Site has a 70' run to the septic tank. Problem is, 18" of pitch (1/4" per ft) places the sewer outlet near the top of the foundation

Run 4 inch with a 1/8 inch per foot pitch. With IPC, as you use, you can even run 3 inch with a 1/8 inch per foot pitch.

 

[Sponsor]

 

[Karl Kaminski]

Run 4 inch with a 1/8 inch per foot pitch. With IPC, as you use, you can even run 3 inch with a 1/8 inch per foot pitch.

Thank you. That would solve the problem!

 

[Jadnashua]

Getting and KEEPING a constant, minimum pitch on buried pipe can be tricky, especially if you can't bury it far. Drive the car over it once while moving something, and you may damage the pipe or mess with the slope. Your locale may have some minimum depth requirements, but that's more often for things like water supply lines than drains, but it doesn't hurt to check first. Gravity is always the cheapest, most reliable method to move stuff...just not always available.