- Joined
- 11 Apr 2022
- Messages
- 16
- Reaction score
- 0
- Country
I know this has been raised before but no one has ever managed to answer and as I have exactly the same problem I am posting again…..my G3 qualified plumber and Gledhill seem baffled by it….they have re-pressurised the tank, changed the PRV, now they are on about installing a shock arrestor but I get the feeling they are just guessing!…. Over the past couple of months the hot water system in my house has started making an incredibly loud reverberation when a hot water tap is opened. I would liken it to the sound of a ruler being twanged on a desk. It is very loud and fades to silence over a period of about 3 or 4 seconds when a hot water tap is opened. It does not do it every time but usually when no hot water has been used for a couple of hours and a bit of pressure has built up in the unvented system. I can feel the vibration in the pipe that leads to the pressure vessel and I can also feel the vibration in the outlet pipe at the top of the tank. I have searched other posts within these forums where a ballcock was identified as the likely source of the problem. This being an unvented system it has no cold water storage. I would be grateful for any suggestions as to what the problem might be or any diagnostics I could try which would be safe for a DIYer on this type of system.
Read more: https://www.diynot.com/diy/threads/loud-vibration-from-unvented-hot-water-tank.542586/#ixzz7Qk2xcOAh
Read more: https://www.diynot.com/diy/threads/loud-vibration-from-unvented-hot-water-tank.542586/#ixzz7Qk2xcOAh