My CC 35 II (1974) also has a manual (Whale) bilge pump in the cockpit, and I notice that sometimes I have to pump very hard to suck the water from the bilge up to the pump so it starts pumping. Presumably there is some leakage of water past the intake valve with just air in the system - at times it’s a real nuisance although I very rarely use the manual pump. So perhaps an electric pump in the bilge in series with the manual pump located quite a lot higher in the cockpit would be good for priming the manual pump, which would then not require the battery to keep pumping. In Cats Paw, that is not the arrangement: two separate pump lines going to two separate thru-hulls. But after reading this on-going discussion, I wonder if maybe some owners have implemented that arrangement. It is comforting to know that it’s possible to go on pumping even if the battery has run down.
Eric Frank Cat's Paw C&C 35 Mk II Mattapoisett, MA
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