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Simple thanks :wink:

tightening the brass nib/tap has worked well..the pressure no longer goes to the red zone and is sticking the needle within the grey zone. I also spoke to Mark..one of the ex- Valliant engineers and he also mentioned that both these knobs tend to become loose and need tightening. The...

Hi Terry...and many thanks...I think your trick has worked...though not sure at the moment. All I did was ...use the screwdriver to take the two grey taps off . Used a wrench to tighten the bras nib/tap. Atleast the rise now is not so significantly high in the last 20 min...but I guess...

I will give it a shot now and see what happens...will come back with a reply either ways

thanks Dan.....the water pressure keeps increasing..during heating and non heating times...while heating...the increase is faster..and when not heating..it is bit slower..though I have not monitored this...but I will have to check this My heating is on 24 hours and I am needing to bleed it...

Both the filling levers are closed..and I have checked..by oppening and closing that they work... I have not touched the brass tap underneath...as I cannot see one... is there something else that I can check?

Just to make sure..I hgave opened and closed both the valves...

Boiler installed in 2006....no problem till date...for last one week the pressure keeps constantly increasing. If I do not bleed the radiator, the pressure crosses the red level in about 7-8 hours. I am bleeding the radiators almost 3 times to bring the pressure ot .5 or .6 before it starts to...