My 36 does this. My solution is to close the valve while underway, I wouldn't rely on a check valve to prevent flooding. My Navy experience tells me they are prone to failure.
Mike Virginia Lee 93295 1978 C&C 36 CB Virginia Beach, VA Sent from my iPad Mini > On Feb 20, 2015, at 18:32, mike amirault via CnC-List <cnc-list@cnc-list.com> > wrote: > > On a C&C 33 mkii, has anyone experienced salt (or lake) water filling up the > sink in the head when heeled over hard on a stbd tack? Mine was filling up > and overflowing unless the sink plug was in or the drain cock closed. I > suppose the proper thing for a seaman to do would be to close the drain cock > but this can be inconvenient when cruising. I installed a check valve and > this worked but it is not of marine quality and is corroding. I don't think a > vented loop will work on a gravity fed drain. Any other solutions? > _______________________________________________ > > Email address: > CnC-List@cnc-list.com > To change your list preferences, including unsubscribing -- go to the bottom > of page at: > http://cnc-list.com/mailman/listinfo/cnc-list_cnc-list.com >
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