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Old 09-27-2011, 09:25 PM   #15
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Originally Posted by Jim Foster View Post
This is a concern to us, especially on the Caravel.
We make sure the pump is off at night, and when we leave the trailers.

Hey, we are talking quiet here.
we spent several years on a boat...the sound of a running pump meant you were sinking...

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Old 09-27-2011, 09:32 PM   #16
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Originally Posted by HiHoAgRV View Post
we spent several years on a boat...the sound of a running pump meant you were sinking...
We had a houseboat on the Sacramento Delta for 25 years. I know exactly what you are talking about.

No noise is good noise.

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Old 09-28-2011, 08:44 AM   #17
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Originally Posted by Lumatic View Post
I don't think the accumulator pump will actually reduce the pump noise, but it will reduce the frequency the pump runs. It will run less often but run longer. It will also extend your pump life expectancy.
It helps eliminate "water hammer" noise...not the actual sound of the pump itself running.

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Old 09-28-2011, 09:04 AM   #18
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Originally Posted by star kitty View Post
I purchased and installed a low capacity (2.5 gpm) shur-flo pump this winter along with all new PEX water lines. The pump is resting directly on the floor with four screws right next to the water tank. The problem is, when I open a valve, it sounds like a train is running through my Airstream.

I am trying to figure out ways to dampen/solve the loud noise. I realize there is noise associated with a pump but I'm hoping to lower the sound a bit.

I usually don't add a lot of water into the tank because the demand is not there and I don't want the extra weight. Could some of the sound be caused by air in the lines because I am not carrying enough water? Could it be the rigid PEX pipe that runs along the street-side wall? Or is it because the pump is resting directly on the plywood flooring?

Thank you.
Our Shurflo will become noisy when the tank water is TOO low. I too try to travel with minimum water level but with twin tanks that total almost 40 gals of water a low supply could be just under 1/4 tank.
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Old 09-28-2011, 09:15 AM   #19
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Originally Posted by InsideOut View Post
We put an ShurFlo Accumulator Tank inline past the pump (under our dinette) and it seems to help reduce the rumble. You can see it here - post #378.


I had noise problem with water hammer after swapping my original 1972 pump with a new surflo.

I also ended up installing a ShurFlow Accumulator Tank and in stopped the water hammer and pump cycles far less.
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Old 09-28-2011, 10:20 AM   #20
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I recently installed a lower priced Shurflo pump and was very impressed with how little noise it made compared to the defective Aqua jet I took out.

Mind you, the Aquajet had rigid piping on the intake side and a length of flex hose on the outlet. When I put in the new pump I put a length of flex hose on both inlet and outlet.

The Surflow that I used had some sort of flexible mounting base to minimize sound transmission - I would have thought they would all have that, or rubber grommets or something. If not, you could improvise.

I can barely hear mine when it runs. The old one sounded as you describe - so maybe it was the hard piping on the inlet that caused the noise in my case.

I didn't change the old pump due to noise - it seized up.


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