RE: [Paddlewise] Bilge pumps

From: Carey Parks <cjp129_at_earthlink.net>
Date: Fri, 29 Dec 2006 13:47:09 -0500
> I also found that if the outlet hose was full of water (between the check
> valve and through hull fitting) prior to activating the pump, it could not
> push past that column of water. But if the outlet hose was clear - no
trouble
> at all, it pumped out water like a fire hose. (I haven't looked into why
that
> was; perhaps someone here has the answer already? ) My on the fly solution
> once again was duct tape, this time across the through hull fitting, kept
the
> tube clear of water and when the pump was needed I just peeled the tape
off.

I'm betting the pump is a self-priming pump, and when left unused for a time
the pump and pipe up to the check valve fills with air. When turned on, the
pump can't pump the air with enough force to displace the water in the
outlet pipe. Keeping the pump full of water would be another solution.

C
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Received on Fri Dec 29 2006 - 10:48:01 PST

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