So bought my house end of last summer, it included a 16x36 in ground pool. Been using the TFP method on it and it has been going well. The pool is about 10 years old and I know the liner is getting up there in age. I have noticed that in two of the corners there is a slight gap that has opened up at the coping maybe 1" long x 1/4" wide (see picture). Is this something to be concerned with? Should anything be done? The rest of the liner seems fine and I would like to prolong the replacement as long as possible.
Sorry the pic is upside down, not sure why or how to fix it. Was fine before posting.