I 'd bet that recommendation was to add an "anti-siphon" valve, not a check valve. They're used on both exhuast and bilge hoses to prevent water from siphoning back into the boat. Anti siphon valves don't increase resistance to flow, they just prevent airlock that can cause siphoning.
Fair winds, Judy B ________________________________ From: "[email protected]" <[email protected]> To: [email protected] Sent: Mon, April 5, 2010 3:35:22 PM Subject: Re: [IC27A] Re: Bilge Pumps My boat is 3 years old (to me) and on my first cruise we were powering in and I glanced into the cabin to see 6” of water! A check of recommendations said to add a check valve to prevent siphoning sea water into the boat. A $6 valve have prevented a repeat flooding. The valve is not recommended by some and I am not sure why. Joe McCary Aeolus Ii, West River, MD Sent from my Verizon Wireless BlackBerry ________________________________ From: "PaulJ" <jau...@bellsouth. net> Date: Mon, 05 Apr 2010 22:20:36 -0000 To: <ic...@yahoogroups. com> Subject: [IC27A] Re: Bilge Pumps Thanks for all the input guys. I had a check valve on our old boat, but hadn't gotten around to on the new boat. I had been a bit hesitant since most folks say don't, but if Judy's got one on her boat, I want one on mine. --- In ic...@yahoogroups. com, Sonshingle <sonshingle@ ...> wrote: > > I also have a Rule 2000 pump and know what you are talking about. I put in an > anti-backflow valve about 4" downstream from the pump. It eliminates the > water coming back in the bilge. Some say a 2000 gal pump is overkill but it > is there when we need it! > Â > Dick Schmidt > Greenville, NC > Â > > --- On Sun, 4/4/10, PaulJ <jau...@...> wrote: > > > From: PaulJ <jau...@...> > Subject: [IC27A] Bilge Pumps > To: ic...@yahoogroups. com > Date: Sunday, April 4, 2010, 11:26 AM > > > Â > > > > I am curious as to the bilge pump setup in other C27s. My 1986 has a Rule > 2000 with a float switch. It seems to do the job, but I have the usual inch > or so of backflow when when the pump shuts off. Does anyone have a better > solution? > Thanks >
