water pressure issue

Nov 28, 2016
101
Hunter 36 Northeast, MD
question for the group. Spent the long weekend on the water with guests on board., so more water used than normal. Our water pressure pump now suddenly takes a significantly longer time to stop after any outlet is closed. Galley, Head, stern shower, it doesn't matter which is used, pump runs a longish time after water is stopped. No evidence of leaks anywhere currently accessible. Haven't yet had an opportunity to do anything but check for obvious leaks, no joy there. Ideas? Would a clogged filter at the pump do it? Jabsco Par-Max 2.9 pump in a 2008 H36. No idea if original or replacement.
 
May 17, 2004
5,602
Beneteau Oceanis 37 Havre de Grace
Is the flow rate when the pump is running still about the same? If not I’d check for a clogged filter. Also, do you have a pressure accumulator? If the pressure inside that leaked out it could cause the pump to run longer.
 
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jssailem

SBO Weather and Forecasting Forum Jim & John
Oct 22, 2014
22,961
CAL 35 Cruiser #21 moored EVERETT WA
  1. more water used than normal. Our water pressure pump now suddenly takes a significantly longer time to stop after any outlet is closed.
  2. No evidence of leaks anywhere currently accessible... obvious leaks, no joy there
YEAH... No obvious leaks. Be Joyful...
You have a water system. Water does not compress. Air compresses. You started with lots of water in a closed system. You took out, let's say, 50%, during your cruise. It makes sense that the pump, which is an air pump, needs to compress the new volume for a longer period than it did when the water system was full.

If the air pump never stops, then look for a water leak or refill the tank. If it runs, then stops, then runs again, look for a little leak (either air or water). If the pump stops and the water flow from one faucet is a dribble, but the others seem fine, inspect the dribbling faucet for a clog. If water only dribbles out of all faucets, then look to the pump filter for a clog.
 
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Johnb

.
Jan 22, 2008
1,459
Hunter 37-cutter Richmond CA
Fill your tank and if it takes a shorter time then it was taking longer because water was not flowing into the suction side of the pump as fast as before.

If it stops at all you don't have a leak.
 
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Dec 19, 2006
5,830
Hunter 36 Punta Gorda
Screens clogged at where lines go into water heater and. That what did and the screens needed cleaning and all good now H-36 07
 
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