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Wonder why the pressure is so high. Water board said I was in a low pressure area when I rang

Quiet during the day then the sound starts at night

I have turned the stop tap of and let water out still get the sound. Still get the sound in another house on the supply with my stop tap off. I put a monument gauge on my washing machine tap.

The area is really high pressure 10 bar. I rang the water board about the issue they said I was in a low pressure area. That I'm running at 2 bar.

Thanks yes I have ruled my house out. But finding the problem source when there is 10 houses on the row could be problematic

Anyone had success finding a cure for this. Water hammer is hard enough to find if in your own home, never mind if coming for another house on a shared main. Is about 10 houses on it.

I need to go in to the waste pipe as isn't close to an external wall

I have piped the pressure reliefs up on these up before with hepVo traps. Do any use the tundishes that act as a trap when piping these up?

If a TRV is leaking from its pin, is there anyway of fixing or is it a new valve. Thank you

Can these rads trap air even though they bleed water out of the bleed valve

Is a vented system

Can I just run through a few things. Because the flow is hot this sort of rules out an airlock? I will try balancing the system

Thanks I'll try again tomorrow. I think when I did turn all off bar that one the boiler got to temperature and cut off. I'll try again tomorrow

Thanks so the return could still be coldish but the radiator could heat as it is dipisatating most of the heat through the radiator

I did turn the others off and it started to perform better. Though I still wasn't getting much heat on the return pipe to it. I think the boiler cut out water at required temperature. I'm going to try again tomorrow. Just wondered if there was anything I could try

If no flow it wouldn't heat up at all?

Because the radiator is getting hot. But can feel much hear on the return. Water must be flowing through it

Any other ideas. Could it still be an air issue?

Yeah I installed the arrow so it flows through the correct way. The baffle forces the flow up the radiator heat is going up to the top of the radiator it is just struggling to return by the looks of it

Not great yet. The flow pipe is hot going too it. Then the heat has started to work it's way up the columns and through the radiator. However the return pipe is only Luke warm.