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Old 05-07-2015, 02:08 AM   #41
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Brand: Thor Motor Coach
Model: 2011 Four Winds 28Z
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Originally Posted by JDHoge View Post
That's good news. Where would one look for this port in a Four Winds 31F? Any ideas?

It should be adjacent to your fresh water pump, or at least between your pump and fresh water tank.

Here is where mine is located:



It just sticks up in the air like a Prairie Dog.
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Old 05-07-2015, 10:52 AM   #42
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Had a terribly noisy situation in Hurricane 34E. Water lines capped off for washer were bouncing around inside wall. Tie wrapped them to drain line, noise is GONE!
My Hurricane 34 J is the same - sounds like someone trapped inside the walls with a baseball bat. Where specifically did you secure them!?
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Old 06-23-2015, 10:57 PM   #43
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New shurflow pump, thick piece of carpet upside down between pump and mounting surface and 36" of flexible tubing from ace hardware and the necessary brass connectors to hook to both the input and output sides of the pump to the existing plumbing in a loop. Like magic the the noise will be gone. Be sure and make the loop and there are two new connector ends that come with the pump. Bought mine at camping world and they mached the price of a competitor of $65.00 versus their $110.00 good Sam discount price. This project is not difficult and takes about 30 min all in if you have the parts together.
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Old 06-24-2015, 04:00 AM   #44
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My Hurricane 34 J is the same - sounds like someone trapped inside the walls with a baseball bat. Where specifically did you secure them!?
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Here is where I placed it on my Hurricane. What a difference. Can not even hear it now and before, when it was bolted to the floor, it was like someone beating down the walls every time.

Used two pieces of hose purchased at Menards and the original screws to attaché to rear wall of under bed cabinet - what a difference it made!
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Old 08-17-2015, 07:59 PM   #45
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THOR #903
Hammering water pump

I know your thread is older. Here is what I found works for the hammering in the walls. Turn off the pump and open all of the faucets and shower valves (hot & cold) to allow the water to balance out in the system. After about a minute I will turn the pump on then close the faucets. I still get the pump vibration, but the hammering in the wall stops. My next step will be to upgrade the pump.
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Old 06-16-2017, 09:54 PM   #46
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Back to top, lots of good information here.....
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Old 06-24-2017, 02:35 PM   #47
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I did several things to silence my pump. I installed an accumulator tank, used vinyl hose (absorbs vibrations) and mounted my pump on top of a piece of thick scrap carpet. The pictures show how my pump looks after tank and hose installs but before adding the carpet underneath, which made a huge difference!

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Old 06-24-2017, 04:09 PM   #48
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Just bought an accumulator tank for our Axis. Next little project. Good pics. Thanks.
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Old 06-24-2017, 08:32 PM   #49
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Just bought an accumulator tank for our Axis. Next little project. Good pics. Thanks.
You will also need the pump silencing kit which are two hoses to absorb vibration. I made my own just because I had the parts, you can see them looped up in the pictures. You are probably going to have to move the pump to make room for the accumulator, having the silencing hoses makes that easier. While you're at it put a piece of carpet under the pump and tank.
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