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I am not using the heating at the moment so I thought the pressure should stay the same but it seems using hot water makes the pressure fluctuate which I thought was unconnected to the heating pressure ?

Just a little as well but then it rises to above what it was at before running the hot , then it drops again so its hard to judge if its still losing pressure as I don't know which is the correct reading , plus if I tap the glass it rises to where I set it to start with. Think I will just need...

Yes , shows a drop in the morning before any hot water is used , the heating has not been on , just wondering why the pressure is fluctuating with heating off and only hot water in use , didn't think hot water use effected the pipework pressure in the system ?

Thanks for the reply , am not sure what a diverter valve is? but if it is the cold water feed in then that's open , the boiler has an internal filler loop where I just pull down on a lever to fill , should something be closed off maybe ?

Hi, have a problem with a recently fitted worcester classic combi with new pipework and rads . thought I might have a leak as the pressure was dropping so I have checked all pipes and found no leaks . I have bled all rads and set the pressure again which started to fall slightly over two...

End terrace house , the mains feeds 4 houses , mines is first in line and the guy who moved into the other end who is a plumber had to get a new feed straight from the main. Mains was tested and had no leaks so stuck with the low pressure . Tested flow and only getting 7 litres a minute...

Have filled the system off the mains , only 2.5 bar of pressure though , leaving for an hour to see if it drops , already held up for 30 minutes so looking good . thanks all

Copper tails yes apart from a couple that are dropped down from above in the wall which have plastic elbows .

Hi , I have fitted 7 rads with speedfit pipes for new central heating , plumbers coming in a few weeks so want to pressure test before he arrives I have closed all valves to the Rads !? Is it Ok to test straight of the water mains, any pitfalls ? Thanks

Hi all, Do I need to insulate all central heating pipes , I will be using Speedfit pipes and no pipes will be under floor downstairs so don't need frost protection but is it good practice to just insulate for heat loss?

Got it now I think , angled lockshield with drain off valve and run hose to outside , one of these http://www.mrcentralheating.co.uk/evolve-angled-15mm-radiator-valve-c-w-drain-off?gclid=CO_Nobyog8UCFTQatAodSl4AdA#.VTQelmctHIU

Thanks for the reply Where do I put drain cocks? , this is the type of thing am thinking of with no pipes below the rads, would I need a hose or something to drain it? http://www.bakerandsoars.com/store/images/products/1441-GRS_Face_Fix_Radiator_Pipe_Guide_and_Seal.jpg

Hi all :) I am needing a little help, fitting new pipe work (JG Speedfit) and radiators in an old house with no central heating and am planning out where the pipes are going( flow and return). So far I have decided to run the pipe from kitchen where the boiler will be situated straight...