I have a problem with liners tearing in one corner. I have replaced the liner twice in the past 4 years and had it patched 4 or 5 times in between. The pool company says that it's because it's the south facing corner which recieves sun all the time and the location of the returns cause all of the debris and oils to collect in that corner. I've kept the liner brushed down and used armour all above the waterline which was recommended by the pool company. Nothing seems to help. I would like some suggestions on a different type of liner, either gunite or changing to a fiberglas pool. I've got to do something different or get the dozer out and fill it in. $ 2200.00 every 2 years just don't work for me. Somebody please help. Thanks' R.D.