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I have been requested to upgrade a distribution board in a London building as someone tried to have a new meter installed and the EDF electrician said the old MEM board has aspestos between the bus bars and missing barriers etc. A few years back now I measured all the missing barriers on one of...

I have a Vaillant ecoTEC 428 boiler which has been losing pressure for about a year now and it has been necessary to re fill once a week. I could find no leaks on the system but water is obviously going somewhere. I had a heating engineer work on the system and replace a failing pump about this...