When filling the bath with hot water there is vibration/ noise from boiler, The water flow seems very slow and it takes a very long time to fill bath to reasonable level even for kids bath. I have noticed that there is variation in hot supply pipe size from boiler, 15mm at boiler then has been joined to 22mm which links to bath close to boiler and then this 22mm pipe continues under floor to supply kitchen. Though down in kitchen the hot supply re-apears 15mm pipe. The boiler is upstairs as is bathroom. I have been thinking of firstly replacing the section of 22mm pipe to bath with 15mm would this help?
The central heating side works fine it is just the hot water supply. :roll:
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