ASA and PSIA Instructor
Join Date: Apr 2000
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The little trick is, using both hands, stretch two inches of the gasket at a time, slowly moving around the entire gasket, excluding the joint area...sort of like kneeding a linear version of pizza dough. The end result is a slighly loosened gasket much easier to insert. Remember the joint goes on the top side. I have instructions somewhere that includes this trick, I'll try to find them, if I do I'll post 'em.
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