I have done as instructed and got it to 1.5 bar cold. Turned boiler back on put heating on and hot water. Went round and bled all rads, got alot of air out with black and orange stained water. No noise so far so it's looking promising. Just need to see if it heats up now!
I have gone back to the pressure unit and got it back up to 1.5 after bleeding. Is this ok now, can't seem to get anymore air out yet.
Prob could do with some inhibitor, what is the best stuff to get please and where from at the cheapest price. Kevplumb, of course I would have mentioned it last night, had I have realised that it was relevant. I am doing my best! I'm just a girl! Thanks so much for all your help. Hopefully my girls will be warm now. Warmfront has a long waiting list apparantly and wasn't looking forward to a long cold winter with no heating!
Also learnt that I need to keep an eye on that gauge in the future!
Gauge is now showing near the red one at just above 1 when I just checked it.