Noisy hot water system - Any ideas? (includes pictures)
- Thread starter pop80_uk
- Start date
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Turn off your boiler one night so it does not start the next morning.
Next day, climb up into your loft and sit by the small feed and expansion tank with a torch. Get someone to turn on the boiler. Does water (or air) flow into the f&e tank? Is there thick brown mud at the bottom?
Next day, climb up into your loft and sit by the small feed and expansion tank with a torch. Get someone to turn on the boiler. Does water (or air) flow into the f&e tank? Is there thick brown mud at the bottom?
Thanks
Not questioning anyone on here but everything I have read on this forum is people saying remove it and you should not have one
Confused!
Thanks
We did this this morning.
No sludge it's clear
No water flowing, but a tiny bit of air
The pipe is not in the water though is this correct? It sits above the water level
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X800 is good product, but use with caution. You cannot leave it in the system, you also cannot drain down and expect residual evacuation of the chemical. Removal of all traces of X800 is mandatory else it will have cleaned your system and will kill your pump also
Getting the faulty rad changed might effect a cure if the perforations/ weakness is leading to air ingress.
Getting the faulty rad changed might effect a cure if the perforations/ weakness is leading to air ingress.
With that layout of that pipework and with the symptoms you've described I would still stand by replacing the manual vent with an aav.
As a test, tomorrow morning when the noise is happening, operate the manual vent. If you get air then an aav will sort the noise.
I would also look at replacig the pin holed rads, which as suggested, could be where the air is coming from way before you look at treating the system.
Ted
As a test, tomorrow morning when the noise is happening, operate the manual vent. If you get air then an aav will sort the noise.
I would also look at replacig the pin holed rads, which as suggested, could be where the air is coming from way before you look at treating the system.
Ted
Thanks Ted
Is there a higher quality auto vent valve or one which will never leak?
Read a few reviews on that screw fix one which were negative
Radiators are being replaced as recommended
Just wondered if a valve existed which would auto close to avoid leaks
I use the city plumbing ones.
http://www.cityplumbing.co.uk/getPr...274004&attribute=-1&fromSearch=&searchArea=-1
If you fit an isolating valve below it, if it does leak you can easily swap it out.
I rarely have problems with them leaking.
Ted
http://www.cityplumbing.co.uk/getPr...274004&attribute=-1&fromSearch=&searchArea=-1
If you fit an isolating valve below it, if it does leak you can easily swap it out.
I rarely have problems with them leaking.
Ted
Kitted up, AAV is a stock item in my van, 5 of 3/8" and two half inch ones. Where do you get yours that don't leak
Sound advice about air vent would be a radiator type that needs vent key to purge
Are you saying you have problems with them leaking?
Are the radiator valves like Aladdin better than these?
Thankd
Ok thanks
I think the Altecnic Robocal AAV is good. Always keep the black screw in place unless you think there's air to purge (ie don't lose it).
You don't say Sherlock. Voice of experience I take it
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