At first sight this might not look like a pool closing question but it actually is. A few years ago I bought a house with an in-ground pool and only recently I learned that there was an adapter from a Kreepy Krauly mounted into the suction pipe of my skimmer. I tried to remove it this summer but finally gave up since I was too busy with new liner install and more. Now that I want to get ready for winter I notice that a rubber plug put into the Kreepy Krauly adapter no longer closes off the pipe from the skimmer to the pump: I damaged the adapter at the top on one side and that's where the leak is. Does anyone have a good idea what tool I can use to remove the stuck adapter? I want to be certain that no water can get into the skimmer pipe in the harsh New York winter that is ahead. Appreciate your help.