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Old 04-07-2012, 06:58 PM   #1
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Water pump noise

I have a standard water pump. Over time the pulses of water seem louder. After changing the pump the sound is the same. I discovered the sound is apmlified because the faucet is bolted solid to the sink and the sound of the pulse of the water comes through the sink (like a megaphone).

Does anyone know of an isolater for the faucet that prevents the sound of the water from being transfered from the faucet to the sink?
Thanks.
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Old 04-07-2012, 08:06 PM   #2
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I just went through this exercise. We have a teardrop trailer so a bit different, but to some extent worse as the water pump was screwed to the floor. The pump has rubber feet but the vibration transmitted is still enough to shake the trailer and sound... I installed four bubble mounts between the feet and the floor marked reduction in transmitted sound. To reduce transmitted sound to the faucet/sink change the pipe to hose. This should be done back at the pump, you can also install a surge tank to dampen the pulsations.
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Old 04-07-2012, 08:20 PM   #3
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Mount the water pump on a vibration isolating mounts, or try adding a loop of flex pipe after the water pump to reduce vibration transfer. If the noise is caused by pulses from the water pump, adding a water hammer arrester could help. http://www.wattscanada.ca/pdf/ES-150A.pdf
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Old 04-07-2012, 08:22 PM   #4
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NOISE

Quote:
Originally Posted by Shadowcatche View Post
I just went through this exercise. We have a teardrop trailer so a bit different, but to some extent worse as the water pump was screwed to the floor. The pump has rubber feet but the vibration transmitted is still enough to shake the trailer and sound... I installed four bubble mounts between the feet and the floor marked reduction in transmitted sound. To reduce transmitted sound to the faucet/sink change the pipe to hose. This should be done back at the pump, you can also install a surge tank to dampen the pulsations.
I also experienced similar noise's, dealer remounted pump with vibration dampener's and insulated some hard pipeing.
A lot better now.
Good luck.
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Old 04-23-2012, 08:24 PM   #5
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Thanks for all of your input. I see I have more options to review. This summer after I perfect it, I'll post what I did. Who knows, maybe I'll design a better pump!
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Old 04-28-2012, 02:12 PM   #6
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Most of the sound is generated by the mounts and sometimes the water pipes coming on contact with walls, floors or some other hard object. Using the rubber mounts and either some flex pipe like is used between a bathroom sink and the stems coming out of the wall and some pipe insulation (the kind that wraps around a section of pipe) to prevent the transmission of the vibrations will solve or greatly reduce the noise. Many have also made or bought and installed accumulator tanks to reduce the pump running which is especially helpful at nite when someone uses the bathroom and prevents the pump from coming on for just a toilet flush.

Good Luck!
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Old 04-28-2012, 02:22 PM   #7
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When could I find bubble mounts for the pump ?
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Old 04-28-2012, 02:47 PM   #8
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Here's a link to some info: Bubble Mounts - Vibration Isolators and Shock Mounts
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Old 04-28-2012, 05:18 PM   #9
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A lot of people (me included) use a computer mouse pad below the mount. Works very well in reducing the sound and is a very inexpensive mod.
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Old 04-28-2012, 05:32 PM   #10
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I was thinking of mounting mine in an isolation web, like the ones you see recording/broadcast microphones mounted in. I was gonna make mine out of bungees and mount it in an aluminum angle frame. Just another project on my voluminous, never-ending to-do list.
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Old 04-29-2012, 07:10 AM   #11
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Quote:
Originally Posted by Ramblin View Post
I was thinking of mounting mine in an isolation web, like the ones you see recording/broadcast microphones mounted in. I was gonna make mine out of bungees and mount it in an aluminum angle frame. Just another project on my voluminous, never-ending to-do list.
I've seen a couple people post mods doing exactly that. Using the big thick black rubber bungees and cutting them into sections about 2"-3" long, drilling a hole in them big enough for the mounting screw/bolt and then placing them under the feet of the mounting hardware for the water pump.
That takes care of the vibrations from the pump to the floor.

Then make sure you either insulate the hard pipes coming to/from the pimp with that soft pipe insulation like is used on hot water pipes in a home or some have replaced a few foot section with flexible lines like you use under a sink to absorb all the vibration transmitted to the hard pipes running from/to the water pump.

One last thing I've seen is some use insulation to line the comparment the water pump is in with good success in almost quieting completely the water pump sound after doing one or both of the above mods.
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Old 04-30-2012, 10:25 AM   #12
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Quote:
Originally Posted by Ramblin View Post
I was thinking of mounting mine in an isolation web, like the ones you see recording/broadcast microphones mounted in. I was gonna make mine out of bungees and mount it in an aluminum angle frame. Just another project on my voluminous, never-ending to-do list.
...on the other hand, the noise from my pump alerted me to a little leak somewhere in the system this weekend. I would not have known to look had I not heard my pump kicking on periodically. These beasts breathe and have a heartbeat, it's a good thing to be able to hear their sounds because they will alert you to things going wrong.
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