I’ve had my 2100 for about 18 months and it gets used weekly but not extensively. The gasket seems to have stopped sealing or something because the pump runs and won’t seal without constant downward pressure on the lid. It doesn’t seem like this should have failed already to me but it has. Is there a way resurrect a gasket that I’m not aware of without buying a repair kit? I already have the Teflon so I don’t need the whole kit and would like to prolong what I’ve got first if possible. Any suggestions?