Boiler losing pressure

Jeepers_Creepers

jollyj1984 said:

That's a great idea to test the boiler vs the pipework. My only concern is that because it's such a small leak would it show a pressure drop in a day with the valves closed? Sometimes i dont see any loss for about a week 

Yup - that's the drawback.

Your call - you either start ripping up walls and floors, call out a plumber (and start saving) or else chuck in a dose of sealant

Do you have a mag filter fitted? No? Then two birdies - one stone (or something like that...)