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Yeah i think one of the recommendation was for protection down to a temperature I won't ever see in my location. To put into context I've had no anti-freeze in the system for about 7 years - hence the drain down flush so what I have is 10 fold better than what it was previously with mains water!

Thanks - good to know. Just a thought - when i initially filled my system I added almost 20 litres of undiluted R600 Sentinel anti-freeze. Is it possible that as it became diluted that it increased by volume and therefore pushed the pressure of system up. When I drained it down yesterday it was...

As mentioned - the expansion vessel was showing 0.9bar on the Schradar valve (with system drained down) so I recharged it to 1.5bar (the value given on the spec of the vessel). I then filled the system to 1 bar, ran 2 heating cycles, one last night and another this morning. Pressure rose to...

I've drained the system down into large buckets so I can re-use the diluted anti-freeze. I unscrewed the braided pipe from the inlet valve, there isn't water passing until I open the valve. On the other end of braided valve I tried loosen the brass nut and I have water so I didn't continue to...

Going to remove the braided filling loop tap now, if the two valves are closed when I loosen the nut it I should not see water right?

System has been cold for a few hours now and definitely is not dropping pressure - just below 2 bar. I'm reluctantly to drain down again as I have filled iwth anti-freeze - but is there anything I can confirm on the expansion vessel with it in situ - I guess not? It was new only 6 months ago but...

Yes braided filling loop - I've double checked and both valves are definitely closed.

I have an ASHP for my domestic heating. I recently drained my system down and removed each radiator to give it a flush and then refilled the system with recommended anti-freeze. I bled and balanced the rads to 1 bar when system was cold and all were nice and hot when heating on. After a day I...

The finish of the plaster is fine, dead flat. The texture I'm referring to is apparent once the mist-coat has dried. I'm lightly sanding this so it is flat. Is this the right thing to do, will the top coat adhere.

Hi, I have freshly plastered room that has properly dried. One of the walls has 3 spot lights directly above which highlights any and every imperfection of an evening - by day it looks fine. I mist-coated the plaster with fresh plaster paint then add 2 top coats of Wilko washable paint. By day...

Yep so the PRV was knackered it seems, I have added a new kit and now the pressure is stable and system is not losing water. Any recommendation for additives that I should add to the system as it was drained down several times and I've lost a lot of the good stuff i guess.....

I found the water is escaping via the over-flow pipe that runs from the expansion vessel pressure relief valve. The plumber replaced the vessel but I don't think he changed the valve. As soon I try to fill the system the water pours out of the pipe that runs through the external wall to the outside.

The hot water cycle had been functioning fine, the pressure drop has only occurred since the heating has come on. If it was the heat exchange the pressure drop issue would have occurred before the recent period when I put the heating on....

Due to some recent building works the hot water cylinder that was in my. loft was relocated and some legs have been run for 3 more radiators which have yet to be fitted. Hot water has been fine since the relocation of the cylinder around 4 weeks ago. This weeknd I put the heating on, all was...