Pond Boss Forums POND CONSTRUCTION Renovating a Pond or Lake? Cleaning out my pond- Overflow pipe questions

tshelton1, you and I were typing simultaneously, it appears.

I'd say your present overflow could become what is called your emergency spillway, provided it is not actually a part of your dam and is higher than your desired water level. The siphon would determine the normal full pond level, the emergency spillway elevation protects the dam from breaching in a severe rain event or if the siphon gets plugged.

This may mean that you must raise or relocate the emergency spillway past the end of the dam. I hope I'm making myself clear?