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Old 04-03-2015, 01:55 PM   #1
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Pipe Insulation to Help with Water Pump Noise

After filling my water system the 1st time after pulling my AS out of winter storage, I noticed the pump was extra noisy due to some of the pipes vibrating. I winterized my plumbing system by blow out the water with compressed air from my air compressor connected to the water connection.

I decided to purchase one length of 1/2" foam pipe insulation. There seems to be a mass of PEX pipes around the water pump in my Classic 25fb and some of them were touching each other or against drain pipes and the wheel well. I cut short sections of insulation and placed them on the pipes at these contact points. Usually 2" to 4" are enough. This seems to have reduced vibration noise.

Kelvin
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Old 04-03-2015, 02:23 PM   #2
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An accumulator would help as well. This would reduce the pressure pulses that cause the pipes to rattle. It is not a bad idea anyway since it would smooth out the water delivery.

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Old 04-05-2015, 03:19 PM   #3
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Hi all we have this exact issue - what is an accumulator? We have a 23 ft and the water pump is under the wardrobe but I don't see the other plumbing pipes.



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Old 04-05-2015, 06:07 PM   #4
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Accumilator is a small tank that allows pump to stay on until it is full and pump doesn't have to come on again until pressure is reduced. I found a small tank at HD a few years ago and it solved the problem with the pump coming on in the middle of the night if you use the toilet. I didn't like the pump cycling while using a small amount of water.
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Old 04-05-2015, 06:22 PM   #5
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Old 04-05-2015, 06:45 PM   #6
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Pipe Insulation to Help with Water Pump Noise

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Originally Posted by KJRitchie View Post
After filling my water system the 1st time after pulling my AS out of winter storage, I noticed the pump was extra noisy due to some of the pipes vibrating. I winterized my plumbing system by blow out the water with compressed air from my air compressor connected to the water connection.

I decided to purchase one length of 1/2" foam pipe insulation. There seems to be a mass of PEX pipes around the water pump in my Classic 25fb and some of them were touching each other or against drain pipes and the wheel well. I cut short sections of insulation and placed them on the pipes at these contact points. Usually 2" to 4" are enough. This seems to have reduced vibration noise.

Kelvin

Check with Jammer. I believe he tackled this issue a few years ago.
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Old 04-06-2015, 02:28 PM   #7
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They also make a water hammer preventer, that is small and easy to install in-line. You can make one yourself out of cpvc/pvc pipe for less than 5 dollars.
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Old 04-06-2015, 04:13 PM   #8
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I've got a Shurflo accumulator and a Flojet pump, 2008 vintage. All the pipes around the pump rub against each other. My output line from the pump is a flexible hose the is in a loop. I found the water pulse still get through. Maybe newer pumps don't pulse as much as mine. The pump is screwed down tight and has rubber grommets. Its in the most inaccessible location too.

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