How can you tell if you can replace the gasket or if you have to replace the plate? It doesn't look as if the plate can be replaced on mine, and the pool place sold us a gasket. The gasket is so glued in that we have worked for hours trying to get it out of there. When I called, they said this was typical and that we would just have to work it and then when we put in the new gasket to get some stix-all to glue the new one in. Does this sound correct and if so, are there any easier ways to get this old gasket out of there. I mean it was glued down to last for eternity!!!!