I was just wondering why so many of you "tradesmen" are so eager to give away advice/tips/answers that have taken many of us a long time to learn only to post them here in the public domain. Now all a person has to do is type in there boiler and fault and the info is there. In the current climate many people will try and fix their boiler themselves and with this site it is making it all too easy for them, just really starting to annoy me.