"Heather" wrote in message
.. .
Does pond depth and surrounding soil play a part in liners floating? We
are
also in SW Ontario and have had no problem so far. Liner is Firestone
roofing material, pond is up to 4' deep and full. Surrounding soil is
mostly clay.

Heather

In my case, I had not finished the VF yet, so the liner was laying on a pile
of dirt on the high side of the pond. My neighbors yard...just ran right
underneath.

BV.