It looks as if the pump can not establish a prime and move the column at the same time. Moving the check valve to the top of the tube will result in a short colum. This should allow the pump to prime. Phil Baus Vancouver WA Life sure is easy on a raft, ain't it Huck? - Mark Twain *************************************************************************** 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/ ***************************************************************************
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