Pond Boss Forums POND CONSTRUCTION Renovating a Pond or Lake? Old stand pipe issues

I'm not a pro, but here's some food for thought maybe...If you just fill the pipe with concrete, over time the rest of the pipe will rust away leaving a potential leak path around your concrete plug. How about digging a hole a couple feet deep around the existing pipe and cutting it off at the bottom of the hole? You could then fill the pipe with concrete and back fill the hole with compacted clay and bentonite to make a permanent water tight seal.

...Just my 1 cent