I don’t like check valves in a bilge pump system because they are prone to blockage and leakage. Just put a high point in the discharge line (before the point of overboard discharge such that minimal water back flows when the bilge pump shuts off.
Bob Bob Boyer s/v Rainy Days C&C Landfall 38 (Hull # 230) (Presently in Baltimore for the summer) blog: dainyrays.blogspot.com email: dainyr...@icloud.com > On Jul 25, 2018, at 4:07 PM, Bruce Pope via CnC-List <cnc-list@cnc-list.com> > wrote: > > After reading your post I decided to forgo check valves on both primary and > secondary bilge pumps and had the same experience with recycling bilge water. > Installed Whale Gusher check valves this spring and they both leak. It > takes about 30 minutes for leakage to top the electronic float and cycle up > pump. > Anyone have recommendations for alternatives? > Not a lot of reviews of check valves or non return valves. > > Bruce > S/V Gyrfalcon > C&C 29-2 > Kootenay Lake, BC > > > From: Randy Stafford <randal.staff...@icloud.com> > Sent: Wednesday, July 25, 2018 9:26 AM > To: cnc-list > Subject: Re: Stus-List I am so done with bilge pumps... > > I’ve had mixed experience with Rule pumps in three years on Grenadine. She > came with an old Rule-Mate 1100 that still works as intended. Before the > 2017 season I added a second Rule-Mate 1100 under the mast step, and it came > from the store with an inoperative internal water sensor, so automatic mode > was useless, and reversed internal wiring or impeller so that it just churned > the bilge water instead of pumping it out the discharge hose. And yes, I’m > certain I wired it correctly - this past offseason I unstepped the mast and > put in a replacement new Rule Mate 1100 which works as intended on the exact > same wiring - which I’d completely replaced before the 2017 season with > right-sized / oversized wire. There are a lot of negative reviews of these > Rule-Mate pumps on westmarine.com (one of them mine, the most-liked negative > review there). > > On a related topic, when I overhauled the bilge plumbing before the 2017 > season, I chose not to install check valves in the discharge hoses because I > was pretty influenced by http://www.yachtsurvey.com/bilge_pumps.htm. I wrote > a long post to the list about my thought process - > http://cnc-list.com/pipermail/cnc-list_cnc-list.com/2017-March/091421.html. > Turns out I drained my batteries twice last season from a cycling bilge pump, > because I didn’t manually pump the bilge often enough. And that sucked - I > had to pull the batteries out, bring them home, put them on a charger, take > them back and put them in, etc. Fortunately I didn’t kill the battery life > with those mistakes - they’ve been working fine. Pain is a great teacher, so > this past offseason I relaxed my principles and installed Whale Gusher check > valves in the discharge hoses. > > Now I’m worried that the little rubber joker valves inside those check valves > will fail and lead to pump cycling again. The big rubber joker valve in my > Jabsco head only lasts about a year, I’ve found, after which it leaks and > allows backflow. > > Cheers, > Randy Stafford > S/V Grenadine > C&C 30-1 #7 > Ken Caryl, CO > >> > _______________________________________________ > > Thanks everyone for supporting this list with your contributions. Each and > every one is greatly appreciated. If you want to support the list - use > PayPal to send contribution -- https://www.paypal.me/stumurray >
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