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

Ric:

I'm in that minority along with you. I have a water line through the dam. It will (if needed) be used to water livestock and consists of a 300' stretch of 1.25 inch black poly, high-pressure water line, connected to a frost free hydrant below the damn, with a shut-off buried 4 feet down and a t-handle valve.

We installed a 24" square anti-seep 1/3 of the way between the damn and the hydrant. That would be the one (and only) weak point in this system. The anti-seep is galvanized (but it's double dipped and quite stout). I suppose it's subject to rot, but it'll outlast me, I'm sure. Inlet side is same 1.25" poly, in a "pigtail" formation with holes drilled along it's length.

I've drawn water a few times from it to haul fish in a tank to the pond. Spose I could use it to drain pond, but it's only about 2/3 of the way to the bottom...