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Old 04-03-2014, 01:05 AM   #1
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Quiet fresh water pump?

Hello,

We are looking to replace our Jabsco Belt Drive water pump with something much quieter. I seem to recall a thread about this but cannot find it with my searches. Can someone send me the link or give me a recommendation? The jabsco works fine but sounds a bit like a rubber beaked woodpecker pounding on the hull when the water is on or the head is flushed. It would be nice to find a "stealth mode" pump to replace the current pump.
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Old 04-03-2014, 01:33 AM   #2
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Our is a simple Shurflo pump. It's quiet. I believe it is 1.6 gpm. That's been adequate for us to this point.
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Old 04-03-2014, 05:51 AM   #3
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I think that how quiet it eventually ends up being is a factor of how, where, and to what it is mounted. I have a Shur-Flo in the pic about and it's a bit noisy. I have messed around with some different mountings to keep the vibrations from extending all thru the boat. However, I *DO* want to hear it run a little. Makes it easy to check and make sure it still works or if there is a fresh water leak.
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Old 04-03-2014, 06:42 AM   #4
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Quote:
Originally Posted by Tom.B View Post
I think that how quiet it eventually ends up being is a factor of how, where, and to what it is mounted. I have a Shur-Flo in the pic about and it's a bit noisy. I have messed around with some different mountings to keep the vibrations from extending all thru the boat. However, I *DO* want to hear it run a little. Makes it easy to check and make sure it still works or if there is a fresh water leak.
Second Tom's comment. I have become aware of several leaks over the years because of the sound of the pump running. In addition I realized that my water maker's fresh water cycle wasn't working because of the silence of the fresh water pump. Some sound is good.
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Old 04-03-2014, 08:32 AM   #5
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Isolate your pump from the boat's structure. There are many ways to do this so whatever works best is left up to you.
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Old 04-03-2014, 10:57 AM   #6
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Thanks for the replies! I think I will start with seeing if ai can isolate the pump some and reduce the sound. I had not thought about the benefit of hearing the pump, but did get a reminder of that one time when a hose to the hot water heater came of and the pump kicked on until I flipped the breaker. Then proceeded to find the leak. Thanks for the reminder.
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Old 04-03-2014, 11:29 AM   #7
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For pump noise reduction, you can mount the pump (s) on 2 short pieces of vacuum hose. Cut each end at 45 degrees and mount to the boat, then screw the pump to the hose.

We have 2 indicator leds that are visible from the galley and salon. One for the water pump and one for the engine room lights. If the pump/lights are on, the light (s) are on.
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Old 04-03-2014, 11:37 AM   #8
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I guess I should have said "quiet enough". We can hear the pump run, but in a "sounds like the water pump is on" instead of a "there goes the damn water pump again" way.
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Old 04-03-2014, 02:29 PM   #9
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Loud enough to let one know the water is running (when the engine isn't operating).

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Old 04-03-2014, 02:52 PM   #10
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Hey... Now THAT'S pretty slick, Larry!
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Old 04-03-2014, 03:18 PM   #11
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Hey... Now THAT'S pretty slick, Larry!
I like it too. Thanks Larry.
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Old 04-04-2014, 06:27 AM   #12
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If the water pump is really quiet its easy to wire a Pump Running light to the pump.

An easy concept for silence is a BIG size accumulator tank.

A pump you can hear may fool you into thinking you have a leak, hours after engine shut down the water on the HW side will cool, shrink, and the pump may run.

As an ex offshore sailor I vote for a loud pump .
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