We have to patch the liner and recut to hopefully get the intake gasket to seal and not leak ...Just wondering if anyone has some hints /ideas on how to cut the liner ,the first time we used a butterfly gasket and then we cut an X in the middle of the hole and pushed the intake thru the hole in the liner , this time we have 2 rubber gaskets and a paper one they told us to place 1 rubber one on the inside ,one on the outside along with a paper gasket and that should be good .We are ready to pull out our hair ....any help would be appreciated