My combi heating system, 5 years old, loses a bit less than 1 bar over a period of three weeks or so. A leak? probably, but so slight there is no evidence to enable the plumber to trace it. One plumber has offered a leak sealer as a solution, a second claims such stuff will bugger the boiler. What does the FOAK here think is the best way forward? Thanks guys Jb
- posted
9 years ago