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Loud Hum / Vibration - Water Pipe in Condo

6907 Views 4 Replies 3 Participants Last post by  Mike Swearingen
I live on the 11th floor of a multi-unit building. Over the past year a humming from the main water pipe that runs straight up through the building has gotten much louder. It shakes our granite countertops it is so strong. We re-modeled out kitchen 2 years ago. The noise wasn't there before, and it didn't show up directly after the remodel. The building maintenance people turned off the motor that pumps the water up through the pipe to all the units. The noise went completely away. The noise can be heard from other "06" units above and below us, but not as loud. We are directly in the middle of the building (height wise) We have a 2x2' hole behind the slide-in stove where we can see / touch the water pipe. It definately is the vibration. The ceiling and floor are concrete, and the humming travels through out the entire condo. It's very loud, and driving us nuts. We tried seeing if anything was touching / vibrating on the pipe, and nothing is (from the hole behind the oven).

What would be our next step? Does anyone have any ideas? Any advice would be fantastic.
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Apparently, the building booster pump is now transferring motor or impeller noise to the main pipe due to its normal wear.
I'm not a pro plumber, but they might eliminate the noise by rebuilding the existing pump, installing a new pump, or possibly installing a no-hub connector or some other connection between the pump and pipe to absorb the noise.
Mike
Thanks for the advice. I'll post what the progress on what I find out...
The building maintenance people need to take ownership of the issue and resolve the problem...
That is most likely your condo HOA. To be sure, you're not the only one experiencing this problem.
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