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Noisy Shower in The AnswerBank: How it Works
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Noisy Shower

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stewey | 18:07 Tue 04th Mar 2014 | How it Works
12 Answers
For the past couple of days I have noticed a clunking noise when I turn on the hot water tap of the shower, and I have problems regulating the hot water. It doesn't happen with the hot water taps elsewhere in the apartment. Can anyone suggest the cause and a remedy for this please?
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Rich Text Editor, the_answer

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Ok Stewey. There is a possibility that there's a problem in the tap. Assuming it's a conventional one with a handwheel, then the internal valve body might have become stiff and is "bouncing" when the tap is turned on. A simple job to dismantle the tap body and investigate.
17:14 Wed 05th Mar 2014
Air lock in the shower in-pipe?
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It's not repetitive sounding like what I think is called an air-hammer; it's just one or two clunks. (I like the sound of that word, but I don't like the sound of it in my shower:))
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Question Author
We live on the eleventh floor of a condo, so I guess the water is pumped up somehow. There is no problem with the cold water.
Single lever water control, stewey?
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Clanad, hot and cold water taps so you have to adjust the two until you get the right temp..
That does sound like an air lock, Stewey. Possibly the roof tank that supplies the water for the hot system, has almost run dry under a big demand. With a condo that size, it may have happened in your case.

The system would then take in air. It should find its own way out soon.
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The Builder, do you think that if I leave the hot water running for a few minutes the air-lock will go?
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Forget that last question I asked; it doesn't make any sense as I leave the water on for a few minutes while I'm showering, yet the noise comes back the next day when I turn the tap on again.
Ok Stewey. There is a possibility that there's a problem in the tap. Assuming it's a conventional one with a handwheel, then the internal valve body might have become stiff and is "bouncing" when the tap is turned on.

A simple job to dismantle the tap body and investigate.
Question Author
Thanks a lot, The Builder. The taps are as you described, and I will take a look at the offending one.

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