Probably caused by siphoning action.do you have a vented loop in the discharge line? Like this one:
http://ca.binnacle.com/Plumbing- <http://ca.binnacle.com/Plumbing-&-Pumps-Plumbing-Hardware/c31_264/p2249/FOR ESPAR-1-1/2&%2334-VENTED-LOOP/product_info.html> &-Pumps-Plumbing-Hardware/c31_264/p2249/FORESPAR-1-1/2&%2334-VENTED-LOOP/pro duct_info.html Dwight Veinot C&C 35 MKII, Alianna Head of St. Margaret's Bay, NS _____ From: CnC-List [mailto:cnc-list-boun...@cnc-list.com] On Behalf Of Peter Delean Sent: July 11, 2013 8:56 AM To: cnc-list@cnc-list.com Subject: Re: Stus-List Introduction and gastric reflux The "gastric reflux" of the head seems to be gravity related, and only happens when the boat is moving in waters with some wave activity. The bowl half fills, requiring a "dry" flush to clear it again. Upon arrival, we had the holding tank pumped out, but haven't tested since. I suspect it has much to do with hoses and hose placement. If the boat is sitting, everything is fine. Peter Delean North Bay, ON Drifter II C&C 30 Mk1 _____ No virus found in this message. Checked by AVG - www.avg.com Version: 2012.0.2242 / Virus Database: 3204/5982 - Release Date: 07/11/13
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