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Old 23-07-2016, 06:28   #1
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Sandero's Avatar

Join Date: Apr 2006
Location: Southern Westchester/Northport LI
Boat: Shiva - Contest 36s
Posts: 3,890
Pressure Pump cycles on

I noticed that occasionally the pressure pump for fresh water will cycle on. I assume this was because the pressure in the system dropped. It runs for a few seconds and shuts off.

If there was a leak in the system the pump would cycle on much more frequently I assume.

Assuming no leaks... would the pressure drop be associated with the valves or air in the system? It's presumably a close system unless you open one of the valves and then of course the pump will come on to maintain water pressure at the spout.

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Old 23-07-2016, 06:51   #2
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Join Date: Jan 2011
Location: Cowichan Bay, BC (Maple Bay Marina)
Posts: 5,420
Re: Pressure Pump cycles on

NO. If it cycles there is a leak. Either inside the pump or in the hoses/piping, unless the pressure gizmo is starting to go.

Look, every single one of these pumps have a MANUAL with a troubleshooting guide at the back of them, and all of them are available online, one pump is prety much the same as the other.

This is a recurring question, so recurring that it comes up almost every week, so you can find the answer, which could be specific to your boat (a plumbing leak or a loose hose clamp somewhere), or systemic (i.e., the pump). We don't know how old the pump is or what your use is, either.

Good luck.
Stu Jackson
Catalina 34 #224 (1986) C34IA Secretary
Cowichan Bay, BC, (Maple Bay Marina) SR/FK, M25, Rocna 10 (22#) (NZ model)
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