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Brian
Brian, Plumber
Category: UK Plumbing
Satisfied Customers: 821
Experience:  16 yrs. experience as plumber, including full bathroom and kitchen installations.
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I have a Megaflow system that makes horrendous vibration

Customer Question

Hello Pearl. I have a Megaflow system that makes horrendous vibration when the washing machine or dishwasher fills. I have replaces all 3 pressure relief valves, no difference. Plus checked pipes are not loose. Very frustrating - any ideas please. ( Have maintenance contract with BGas but they cannot help. )
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Submitted: 10 months ago.
Category: UK Plumbing
Expert:  Brian replied 9 months ago.

Hi just washing machine and dishwasher?

There are only two PRVs on an unvented cylinder. Can you tell me was the other one a pressure balancing valve? these are often the culprit.

Also if you run another cold tap when this starts does it stop the noise

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