Don Lowther wrote: > However, I found during a 6 week paddle this past summer that the "air button" > is very susceptible to jamming when sand grains make their way between the > button and it's housing. I haven't found that problem and am not sure if it's a result of my having found a button with a tight fit or the fact that sandy beaches are rare in the Great Lakes areas where I paddle. > 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've had problems with intermittent pump priming even when there was enough water in the bilge to saturate the pump. I never noticed if the outlet hose had water in it at the time - I'll have to look into that and see if I have such a correlation. I did notice that the problem would go away if I removed the pump and reseated it in its mount (the base allows the pump body to twist off). I finally took everything non-electric apart, cleaned it up, reassembled it and the problem went away - I thought it might be the impeller scroll case not being sealed quite right and therefore not generating enough pressure to push the water out. If you are having a problem with water on the outlet side of the check valve, try relocating it as close to the outlet fitting as possible to reduce the amount of water that can be held there. Good thing the hose is the cheapest part of the assembly. I also had occasional check valve leaks - there was sand/gravel/twig/something in the duck bill part of the valve lodging it open. I never go out without my manual pump as a backup. Mike *************************************************************************** PaddleWise Paddling Mailing List - Any opinions or suggestions expressed here are solely those of the writer(s). You must assume the entire responsibility for reliance upon them. All postings copyright the author. Submissions: PaddleWise_at_PaddleWise.net Subscriptions: PaddleWise-request_at_PaddleWise.net Website: http://www.paddlewise.net/ ***************************************************************************Received on Fri Dec 29 2006 - 12:02:52 PST
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