S
spoar
Hi, I'm hoping you guys might be able to help me with a water hammer problem.
Basically, whenever any of the taps (hot or cold - kitchen, bathroom, outside, etc) are closed quickly, the pipes knock heavily somewhere in the system. The faster they are closed, the heavier they knock.
I suspect they are poorly clipped somewhere along their run. Where they are accessible, I've experimented by holding them; clipping them; wedging things behind them etc. and the best I can do is dampen the knock a little or make it shift to another section of the pipe run.
Anyway, although it's a bit annoying, I can live with it.
There is another aspect to it though, which is driving me insane! All day and night, the knock occurs roughly every 15-30 seconds even when nothing is in use - i.e. taps, toilet, washing machine, central heating, dishwasher etc. are all inactive.
The knock is less severe than when a tap is shut off rapidly but it is still loud enough to stop me getting to sleep.
I can't fathom what is causing it and why it occurs 24hrs a day at regular intervals. I've wondered whether it is a slow-dripping leak somewhere in the system but if it is, I can't find it. Or maybe it's a PRV in an appliance (the combi boiler perhaps) which is doing its job every few seconds for some reason.
Does anyone have an ideas what might be the root cause?
Thanks in advance for your help.
Basically, whenever any of the taps (hot or cold - kitchen, bathroom, outside, etc) are closed quickly, the pipes knock heavily somewhere in the system. The faster they are closed, the heavier they knock.
I suspect they are poorly clipped somewhere along their run. Where they are accessible, I've experimented by holding them; clipping them; wedging things behind them etc. and the best I can do is dampen the knock a little or make it shift to another section of the pipe run.
Anyway, although it's a bit annoying, I can live with it.
There is another aspect to it though, which is driving me insane! All day and night, the knock occurs roughly every 15-30 seconds even when nothing is in use - i.e. taps, toilet, washing machine, central heating, dishwasher etc. are all inactive.
The knock is less severe than when a tap is shut off rapidly but it is still loud enough to stop me getting to sleep.
I can't fathom what is causing it and why it occurs 24hrs a day at regular intervals. I've wondered whether it is a slow-dripping leak somewhere in the system but if it is, I can't find it. Or maybe it's a PRV in an appliance (the combi boiler perhaps) which is doing its job every few seconds for some reason.
Does anyone have an ideas what might be the root cause?
Thanks in advance for your help.
