Pond Boss Forums POND CONSTRUCTION Building a dam Stand Pipe and Overflow Pipe?

The hole in the bottom of the dam is to drain the pond.
The stand pipe is to maintain water level at the top of the pipe. The stand pipe can be sleaved so it will draw deeper water & not loose the top fertile water if you wish. It is also less susceptable to beavers clogging with a sleave.

A siphon can be used in the same manner & if the inlet is positioned correctly will drain most of the water from a pond when needed.

When I was siphoning my small pond I toyed with the idea of a cheap foot valve. The most econimacal idea I came up with was an innertube clamped to the outside of the pipe inlet & then pushed up inside the pipe inlet. Water could enter the inlet but hopefully the innertube would collapse preventing it's exit. It would have to be long enough as not to be pushed back out the pipe when filling it from the top of the dam. This was the hardest problem to overcome when the siphon quit & the water level was down 10 ft. I had the pond drained before I thought of it though.

Some sort of strainer should be used on the inlet of a siphon to prevent fish, turtles ect from clogging. I think that's what happened to mine.