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 > <mailto:cnc-list@cnc-list.com>> > Sent: Tuesday, September 06, 2022 1:52 PM > To: Stus-List <cnc-list@cnc-list.com <mailto:cnc-list@cnc-list.com>> > Cc: Bill Coleman <colt...@gmail.com <mailto: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 <mailto: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>
