Pond Boss Forums POND CONSTRUCTION Selecting a site Pond Noob Questions

You could use some of that sand to cover the liner. Use a tracked bobcat to put it over the top of the liner, covering the liner with a foot or so of it. Work from the shore out, that way you aren't running the bobcat on the liner itself. Sand covering the liner will prevent it from floating. They also have one way vents they put in the liners for the bigger installations to prevent them from bubbling up.