Pond Boss Forums POND CONSTRUCTION Renovating a Pond or Lake? Black Plastic Sheeting

I agree with RAH and fish n chips. You don't see posts and threads about using plastic sheeting to line ponds and fix leaks because it isn't used. I'm not saying that it wouldn't work, and I'm not saying that it WILL work. I'm saying that over time, historically, the only way to seal a pond well enough to hold water is to plate the WHOLE pond basin, from the very bottom to above the high water level with clay, properly compacted to a thickness of 18" to 24" if the whole pond basin isn't comprised of clay. ANY sandy areas need to be excavated out to good clay and repacked with clay, just like you did with the dam.

That is what has proven to work. Are you willing to go to this expenxe and take the time to do this, with the knowledge of being a forerunner in this technique that might not work? Or would you rather go with a technique that has proven to work if followed?