Putting in new liner and came upon a problem. I am changing my skimmer out while I am doing my new liner. Any way my old skimmer had the 2 part gasket for skimmer and my new one has the double layer gasket. With the double layer I can not put my skimmer bolted on and the cut my hole in the liner because to put the double layer on you have to already have the hole cut into liner. Can I take a knife and cut my double layer gasket and make it 2 pieces with out messing it up and to where it will still not leak? Hope I explained where you can understand what I am asking. I am shut down until I get this figured out...Thanks in advance.