Is it standard practice to install liner lock around the entire perimeter of the pool. The PB just left a few weeks ago and this is out first IG pool. The liner seems like it is locked in place and this is just being used as a "fancy trim". I have pushed it back in 5-6 times and it just pops back out. Seems like the aluminum track still has a film of concrete on it that breaks away causing the lock to loose it's bit {this is just a guess}. Called PB and awaiting a call back from them. Any opinions?View attachment 59969View attachment 59970