pulsating water pump

top dog · Post by **top dog** » Tue Apr 24, 2007 6:03 pm

Hey guys i hope all of you are well. I have a minor problem that we cant figure out i hope that u can help me. I replaced my fresh water pump (old one was Fine) now i know , witha simple shurflow 4gpm pump, after changing pumps i now have a pulsating flow in my shower head, the problem started in the galley faucett after installing a new faucett (home Depot looks awsome) that problem graduated to the shower . Any ideas?? thanx again..Pete BTW i posted the pic of boat as requested

franklyprice · Post by **franklyprice** » Wed Apr 25, 2007 2:33 am

Does it pulsate on hot and cold? or just cold? An expansion tank could be the fix.If it's a quick pulsation, I'd check the intake side of the pump to make sure it's not restricted.

top dog · Post by **top dog** » Wed Apr 25, 2007 3:04 am

thanx frank it only pulsates on the shower in head not anywhere else if it had a restriction would it happen anywhere else also its only on the cold thanx again..Pete

franklyprice · Post by **franklyprice** » Wed Apr 25, 2007 2:08 pm

Pete, It sounds like it needs the expansion tank. The air pocket in the water heater acts as an expansion tank for the hot water , so the fact that it only pulsates on the cold side would sort of point in that direction. I will be adding one to mine this year because of fluctuating water temps during a shower, caused by the same problem you have.

top dog · Post by **top dog** » Wed Apr 25, 2007 4:09 pm

Frank that does not happen with the galley sink or the wash down inthe cockpit it was happening in the galley and i replaced the faucet and spicket combo and now the shower has the pulsation. Maybe since the impeller in my old pump broke i may have some blockage some where ??? i did find tiny pieces in my galley spicket

franklyprice · Post by **franklyprice** » Thu Apr 26, 2007 2:25 am

Pete, It's possible but in my shower , when the showerhead gets clogged it doesn'r pulsate or any thing else , just slows the flow down.It should be easy enough to clean it out and see what happens?

top dog · Post by **top dog** » Thu Apr 26, 2007 11:11 am

thanx frank i soaked it in lime away the first time i saw the problem my tech will look at it.i will let you know. This is driving me CRAZY!!!!! Pete

CB35 · Post by **CB35** » Thu Apr 26, 2007 12:12 pm

If you do not have an expansion tank, one will solve the problem. I replaced my GalleyMade sytem with a big sureflow. Pulsed like a mother. I reinstalled the expansion tank and the pulsing stopped completely. Charlie

top dog · Post by **top dog** » Thu Apr 26, 2007 3:06 pm

thanx charlie i may have to do that however it was pulsating ith the galleymade thats why i got the sureflow to begin with thinking it was the galleymade.