Noticed evidence of weeping at the valve of bathroom rad. When I got round to checking pressure on boiler, it is down to 1 bar as opposed to 1.5 when it was installed last year. I have the owners manual but there is nothing in it to say how to increase water pressure. (There is a simple on / off control which shares the same window as the pressure guage, currently set to on - anything to do with increasing pressure?) I seem to recall engineer who fitted the boiler mumbling about 'water supply control underneath' but there are at least 5 pipes and nothing obvious. Can anyone with the same boiler please advise? (I would contact the engineer, but he is rarely in the shop. When I asked him to re-site a rad in the bathroom 3 months ago, he came, promised to price the job, but never bothered to quote - job too small probably.)
I am somewhat anxious since I understand that the entire system will explode and vapourise the whole street, without benefit of insurance, and result in me being blacklisted by every plumber, electrician and builder in the western hemisphere if I allow it to drop much further. At the very least, it will turn itself off and refuse to co-operate until a plumber can get here in 2007, if a better job doesn't come along first. All help appreciated.
ZD