Hi All - my liner lock keeps coming out. 20'x40' in ground and replacement liner is 3 years old. Liner itself stays in all season even when liner lock pops out but over the winter (pool is closed from Oct-May) I get liner lock pops and some liner too. With my last liner (original) I knocked some pennies in to wedge the liner lock in better but I do not want copper getting into water and it also looks bad. There must be some small, plastic wedge-shaped pieces out there that will do the trick. I've searched online and Home Depot to see if something like this is out there for another purpose already to no avail. My other thought is to tap liner lock in very well and then use a screwdriver to bend the upper part of metal track down a bit to make it all more snug. Track is a channel with upper and lower parts and I'm referring to the upper part which is accessible when liner is in.
Thanks - Jeff