I have one of those premolded plastic ponds you see in Lowes. It has a
small crack in it. How is the best way to patch it. I have tried
liner patch along with silicone but that seems to disinigrate in a few
years. Any other better ways to patch it that adheres to the molded
plastic and thaws and heats along with the pond so it does not seperate
from the pond?

Thanks
Rick