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Yes- The Old Leaking Head Problem
I have a Raritan manual pump head on board. The Flapper Valve leaks.
Raritan has told me that - since it is a rubber valve - I only need to "properly" tension the four housing screws that hold the valve in place between the base (below) and the pump housing (above).
Nigel Calder, in the Boat Owners Mechanical and Electrical Manual, suggests applying a little silicone between the leaves of the flapper valve to help the seal.
I have replaced the valve twice, fiddled endlessly with finding the "proper" screw tension, and applied silicone as NC suggests - the darn thing still leaks!!
This is a very common head - so I would think this is a very common problem. Has anyone out who has experienced this successfully resolved this?
Thanks in advance for your help.