Pond Boss Forums POND CONSTRUCTION Renovating a Pond or Lake? Forage Pond Leaking

1) What would be the best way to secure it at the top? Should I bury the top part, place heavy rocks on it, or secure with staples?

If I was doing it on my pond, I'd do all 3, but I'd make my own staples from pencil rod, or 1/4" dia smooth rebar. I'd make the staples 1' to 2' long and install them around the whole perimiter of the liner (top, sides, and bottom every couple of feet).

2) How should I secure the bottom section of the liner? If I don't weigh it down some way at the bottom won't it have a tendency to float up?

3) I believe that some liners are toxic to fish. Is there any type of liner I should avoid? How thick of a liner should I get?

I believe most pond liners are EDPM rubber, and are from 30 to 60 mil thick. I'd get the 30 mil one, because you want it to conform to the hole contour. Thinner molds easier.

Thanks again for the help!