Dave Kruger wrote: > Sooo, in a nutshell ... it loses its prime, and the check valve on the > _exit_ prevents it from getting air/water out? I could see this if the whole affair is pretty airtight. If air is trapped in the outlet pipe, inside the pump and the scroll case, water can't enter the scroll case to cover the impeller -- think of pushing an empty glass upside down into water - water stays out of the glass. However, I rather doubt that the whole affair is sufficiently airtight. If it is, a tiny hole in the pipe on the pump side of the check valve should solve the problem. That'll let air through but not leak any significant amount of water. > I'm wondering: "What's a curly-que?" If you make a full 360 degree loop with the outlet tubing, you get the equivalent of a trap in the drainpipe of a sink. If the top of the loop is close to the underside of the deck, it makes an effective check valve. If you can't find a cheap check valve, that's an alternative - not truly watertight, but pretty effective. I wish I knew about this before buying a $$ check valve. 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 Wed Jan 03 2007 - 13:07:35 PST
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