I performed some maintenance by cleaning my duovalve. The plungers seemed stuck when trying to remove them, so I pried the 2 rubber pieces off the bottom of the mounting plate, where the stems ended, not realizing it was part a gasket. I managed to re-install the rubber pieces on the bottom. My plunger stems are different from the plungers posted in the DIY sticky. With this rubber gasket virtually gone, can this be a problem?
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