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Hi, Our house has a Suprima 60 boiler, approx 10 years old. Had a problem last year where the boiler made a sound like a jet taking off every so often when CH was on. The Scottish Gas engineer (we're on Homecare) replaced the pump and this stopped the problem. Since the summer, had a...

Hi, The ball valve is slightly leaking in the loft CWST, so the overflow eventually starts dripping if we are not using the bathroom taps or flushing the loo. I'm comfortable enough with the concept of replacing it, but just want to confirm about sizing and the existing valve's connection...