Our boiler (glowworm cx30i) flue runs through garage just under ceiling height to external wall, it's been in for about 7 years, no problem until now, recently the clamps joining the flue extension pipes have started dripping, I have tried tightening the clamps but they are still leaking,
Is there any tips or tricks to stop the clamps from dripping, the clamps have foam where the bolts tighten
Is there any tips or tricks to stop the clamps from dripping, the clamps have foam where the bolts tighten