Tree roots.

[brenda]

My friend has a pond ,which seems to be leaking as the water level is falling.
The pond has a reasonably new liner, and a lot of care was taken making sure the surface inside the pond was smooth and even , before the liner was fitted.

Near the pond are some trees and she thinks the roots of these trees have punctured the lining.
If she starts again from scratch, is there anything she could use to act as a barrier between the roots and the liner.I think she was thinking of a metal sheet of some kind.
She wants to keep the trees, and is not up to concreting.
All ideas very wecome TIA Brenda.

[langara]

Are you sure it's not just the sunny weather, even as I speak my husband is topping up our pond, it seems to lose about 4inches of water if it's hot for a few days. We lined our pond with lots of old carpet before putting in the liner, but tree roots have a mind of their own, wish her luck.

[brenda]

Thanks langara, she has had the problem for a while , but will tell her.

[landscaper2]

Depending on how 'reasonably new' the liner is, I wouldnt think that tree roots woud be a problem, unless one was not cut back far enough initially.
Let the water level drop until it stops, then the leak is obviously on the water line and easy to find. It can then be dried and patched after making sure that anythin protruding is removed.
If all else fais, concreting a barrier is a lot easier than you think.