Why is the pump sound on my shower especially loud?

Why is the pump sound on my shower especially loud? What could be going on? How can I tell if this is normal or if it’s an issue?

Asked by Greg on 10th May 2022
Expert Trade Answers
"Sounds like your pump is on its way out or you’ve got a cheap shower pump"
Answered on 21st May 2024 - Member since May 2024 - report
"Sounds like what is known as 'cavitation' and might be as a result of either poor installation, i.e. not providing a dedicated cold feed from the tank and a non-flanged connection to the hot water cylinder. This is likely to introduce air into the pump and will increase noise and ultimately shorten the life of the pump. Excessively long supply pipe runs or clogged filters will cause the same issues. An experienced plumber is likely to know immediately upon hearing the pump running if the the noise level is normal or not. Replacing the pump is unlikely to be a long term solution and I would get a plumber to look at the set up to determine if it meets with the manufacturers' installation requirements."
Answered on 12th Jun 2022 - Member since May 2022 - report
"Could be that the bushes are worn out or it is lime scaled up. or the flow switches are worn.
Also could just be it's a cheap one."
Answered on 11th May 2022 - Member since Sep 2021 - report
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