Pond Boss Forums POND CONSTRUCTION Renovating a Pond or Lake? How to drain a large pond to do a repair? Ideas?

When I say thinwall, I am referring to SDR35 or DWV, but they are not interchangeable. Both are somewhat thinner and lighter than sch 40. Four inch sch 40 is kind of a beast to handle.

I used 30 feet of glued SDR 35 through my dam as an inlet pipe (above max water level) and it works great. I buried it at a maximum depth of 31 inches in the clay.