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Old 06-30-2018, 08:58 PM   #1
Junior Member
Brand: Thor Motor Coach
Model: class c 25ft
State: Florida
Posts: 22
THOR #6873
Noisy water pump

What would you put around the fresh water pump to eliminate the noise?

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Old 06-30-2018, 09:11 PM   #2
Senior Member
Brand: Thor Motor Coach
State: Florida
Posts: 1,011
THOR #1249
A couple of things you can do to quieten it down. Put the pump on rubber isolation. i.e. don't mount it rigidly. I used a couple of pieces of rubber hose with one wall fastened to floor and pump sitting and fastened on top. Also, if your pex tubing is connected directly to pump, it will vibrate noise thru the tubing. You can isolate that also.
Take a look at my mods post # 1. http://www.thorforums.com/forums/f27...-mod-2255.html

2015 Thor Vegas 24.1 in Ocala
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Old 06-30-2018, 09:24 PM   #3
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Brand: Thor Motor Coach
Model: Hurricane 31S
State: Texas
Posts: 2,189
THOR #6411
Usually it not the pump, but the PEX lines that are hard mounted to the pump that make the noise. The pump is mounted on four soft rubber blocks so there is not much else you can do with the pump. If the pump is mounted on a thin piece of plywood, a small section of 1/2" plywood under the pump and on top of the thin original mounting position might help. Shurflo males a kit to quite down the pump. <https://www.amazon.com/SHURFLO-94-591-01-Pump-Silencing-Kit/dp/B000WN5F96>. An accumulator also helps quiet the pump noise. Finally you probably have a constant speed two piston pump. Several companies market a five piston variable speed water pump all will be a little quieter than what the coach's original pump.
Jim & Roy Davis
2016 Hurricane 31S
1961 Rampside in tow
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Old 06-30-2018, 10:58 PM   #4
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Brand: Still Looking
Model: Tiffin Wayfarer 24 BW
State: New York
Posts: 16,264
THOR #8860
I'm just happy to hear that it's running (and working!).
Good Sam Member 843599689
Current coach: Tiffin Wayfarer 24 BW
"History shows again and again; how Nature points out the folly of Man!"
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