JRscooby wrote:
wapiticountry wrote:
The slope only needs to be 1/4 inch per foot of lateral line.
That sounds like a pretty steep drop to me. Inch in 10 feet is what I remember, but it's been a long time sense I put in septic tank.
As to the "runs down hill". In fact, if the grade is not right the water will run off and leave the solids. When putting in sewer lines, you want stuff to flow. If needed to stay below grade use flow, vertical drop, flow, stairstep looking trench.
And the bottom of the trench needs to be stable enough you don't get any settlement that can cause low spots.
Thanks. Wouldnt have thought about the bottom of the trench part.