How Do You Install a Preformed Pond Liner

You can put approx. 2″ of play sand base under the pond and have some for around the edges. … You should have the pond’s edge slightly above ground level so the dirt around it slopes at least 10% away from the pond to prevent rain from washing soil, lawn fertilizers, etc. into the pond.

Do you need sand under a preformed pond?

You can put approx. 2″ of play sand base under the pond and have some for around the edges. … You should have the pond’s edge slightly above ground level so the dirt around it slopes at least 10% away from the pond to prevent rain from washing soil, lawn fertilizers, etc. into the pond.

Are preformed pond liners any good?

It has mostly fallen out of favor these days, though, as preformed and flexible liners have gotten better and better (especially with regards to durability). A concrete pond requires the most work to install, by a great deal. It’s hard, backbreaking work that requires more than a little bit of skill to do well.