And not to beat a dead horse, but as I mentioned B4, I had no luck with the t;ypical pumps available, and once I went with the Johnson, all my problems went away. Maybe they have a better designed check valve.
Bill Coleman On Tue, Sep 6, 2022 at 3:07 PM David Knecht via CnC-List < cnc-list@cnc-list.com> wrote: > Good thoughts. I can see in my tanks and there is not any significant > amount of sludge. I also have a strainer that was already in the line just > before the pump. The pump came with one, but I elected to leave the > existing one in place. I cleaned the filter and there was not much there. > Dave > > David Knecht > Rear Commodore > Thames Yacht Club > New London, CT > > > > On Sep 6, 2022, at 2:21 PM, Matthew via CnC-List <cnc-list@cnc-list.com> > wrote: > > If you have that much sludge, you may want to consider an in-line > strainer. I have one between my bilgewater intake and my diaphragm bilge > pump, and I know I’ve saved the pump from a lot of crud. My strainer is > simple and looks like the product at the link below, but as I recall it was > made by a company with a marine presence (like Forespar or Surflow). Very > easy to install and clean periodically. > > 1/2 Inches Water Pump Strainer, Compatible with 3/8 Inches Hose Barb > In-Line Strainer Twist-On Pipe Sprayer Filter for Water Pump 12V DC 80 PSI > RV Camper Marine Boat Lawn (1): Amazon.com: Industrial & Scientific > <https://www.amazon.com/Strainer-Twist-Sprayer-Filter-Camper/dp/B094NQNVMF/ref=sr_1_6?keywords=water+strainer+marine&qid=1662487937&sr=8-6> > > *From:* Bill Coleman via CnC-List <cnc-list@cnc-list.com> > *Sent:* Tuesday, September 06, 2022 1:52 PM > *To:* Stus-List <cnc-list@cnc-list.com> > *Cc:* Bill Coleman <colt...@gmail.com> > *Subject:* Stus-List Re: Fresh water pump dead? > > Maybe you have a lot of sludge in your tank, I often put a hose on the far > end of my water system and run a couple tanks out into the slip to clean it > up. > > Bill Coleman > Entrada, Erie PA > > On Tue, Sep 6, 2022 at 1:17 PM David Knecht via CnC-List < > cnc-list@cnc-list.com> wrote: > > It looks like the pump version was not the problem. I will confirm > tomorrow, but according to Defender, I did indeed purchase the pressure > limited version of the pump. I don’t think they even sell the non-pressure > limited version. The response I got from Jabsco/Xylem customer support > said to do this: > > The problem with your pump is the Check Valve. What you would need to do > is too clean it. Take the six screws out they would are Long then Short in > size; the pump will come part in two pieces the motor and lower housing as > one piece and the pump head; once you spread the two pieces apart the check > valve will usually fall out by itself. The check valve looks like a > triangle with suction cups in each corner on one side and the other side > theirs a rubber diaphragm in the center; that are machine press in(Take a > picture of the check valve “Both Sides”). Take the check valve and place it > in a bucket of warm water wait a couple of minutes. While the check valve > is soaking; take the head where the suction and the discharge hose hookup > and rotate and look inside. You will see a circle in the center a 1/8” > edge; take a wet towel and wipe off that edge (Front, Back and Top Edge). > Take the Check Valve when it’s submerged pick it up and slush it back and > forth in the bucket of water for a couple of minutes (While Submerged). > This should clear all the particles. Place the check valve back into the > Head of the pump and put it back together. 90% of the time your pump will > be back to normal. > > Seems excessive for a brand new pump but I guess I will have to try it. > Dave > > S/V Aries > 1990 C&C 34+ > New London, CT > > <image001.png> > > >
