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Old 05-07-2012, 09:59 AM   #1
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Noisy water pump

We bought our Airstream a little over a month ago. We went camping for the first time and noticed that the water pump is very loud. I've read about other people having water pumps that make a lot of noise too. We were the only people camping where we we were, I was surprised how loud it was outside. What is the best way to take care of this? It would be annoying to anyone camping near us. I've read some people use foam, any help would be appreciated.
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Old 05-07-2012, 10:11 AM   #2
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If you'll use the search function in the blue bar above and search on "noisy water pump" IN THE GOOGLE search field, you'll find many posts about how to reduce the noise. Lots there!
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Old 05-07-2012, 10:15 AM   #3
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Air in the lines will cause the pump to "hammer". Always be sure to bleed the air from all the lines when you get setup.
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Old 05-07-2012, 10:23 AM   #4
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You can add an accumulator tank to the system. Cheap and effective.
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Old 05-07-2012, 10:41 AM   #5
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Mount the pump on a rubber mat or use rubber washers under the screws that hold it down. I did the latter and it helped a little, but mostly we just ignore it.

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Old 05-07-2012, 10:52 AM   #6
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I re-mounted ours on these...helped some, but the fact that Fibber's closet is stuffed probably helped more.

POI....on edit.....after I did my sooper up-grade, it werked so well I didn't hear the the pump running and upon my early morning visit to the head was jolted awake by a flooded floor.

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Old 05-07-2012, 10:53 AM   #7
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Add foam pipe insulation to the water lines everywhere the pipes are against the floor or wherever the pipes run thru walls/shelves. Basically anywhere you have access to the water lines, insulate them. Foam pipe insulation can be bought at any home improvement store for just a few $. That hammering sound drove me crazy too.
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Old 05-07-2012, 02:54 PM   #8
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Some excessive noise can be caused by the vibration of pipes right at the pump itself...if you can reduce the vibration there by securing or padding the lines better, it should help.

Richard is also right, that if you have air in the lines it can cause a very annoying loud hammering sound...we use the shower to bleed the air out of the lines since that's the highest point in the system...just let the shower run a bit and see if that helps.
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Old 05-07-2012, 04:12 PM   #9
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Thanks everybody. Some great ideas.
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Old 10-21-2016, 11:49 AM   #10
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Loud Water pump

I used a "fun noodle" one of those tube shaped floating devices and cut it to size, wrapped it around the plastic water pipes where they came in contact with the frame.

Cost about $2 and my problem was fixed.
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Old 10-21-2016, 01:57 PM   #11
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MY pump is mounted on shelf and the shelf was loose. A couple of screws in it helped a lot. Plus the pipe insulation. Also, in 2004 I think they were using rigid pipe connections to the pump (that were in 2007). Change them to flexible hoses.
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Old 10-21-2016, 03:18 PM   #12
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Noisy Water Pump

Also try this simple fix.

Tighten the two Phillips screws holding the chrome escutcheon (plate) behind the shower handle.

This will also tighten the mixing valve on the other side of the bulkhead.

The mixing valve vibrates when the pump runs.
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