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Feed comes in in copper, goes off into roof (presumably to feed f+e) in steel? iron? never sure how to tell those apart. The fitting in the middle (not sure what you'd call it) is not one I've come across before so don't know what to call it.
Although I'd hazard a guess you can just put a pair of grips on the middle fitting and another on the thread of the ball valve, unscrew it and fit a new one, wrapped with ptfe, into the female part I thought I'd check whether it would be all that simple or whether because it looks so old there's a chance of disturbing the connection steel/iron connection that because I wouldn't know where to begin with sorting that out.
The other things is what's going on. Ball valve seems to shut off fine (although I know they can occassionally manage to shut off in process of dying) but tank overfilled whilst property was vacant for a week with internal stopcock apparently shut off. I told him it sounds like the ball-valve has gone and the internal stopcock doesn't fully shut off.
My idea was just to change ball-valve. The water is the CWSC is very mucky with this layer of crustiness on the top. So I'm wondering whether the cylinder coil might have pinholed. I reckon the first thing to try is just changing the ball-valve anyway.
So, thoughts on whether it's simple enough to change it (I've changed about 30 before but not with this set-up of piping) and whether there might be something else afoot...
Although I'd hazard a guess you can just put a pair of grips on the middle fitting and another on the thread of the ball valve, unscrew it and fit a new one, wrapped with ptfe, into the female part I thought I'd check whether it would be all that simple or whether because it looks so old there's a chance of disturbing the connection steel/iron connection that because I wouldn't know where to begin with sorting that out.
The other things is what's going on. Ball valve seems to shut off fine (although I know they can occassionally manage to shut off in process of dying) but tank overfilled whilst property was vacant for a week with internal stopcock apparently shut off. I told him it sounds like the ball-valve has gone and the internal stopcock doesn't fully shut off.
My idea was just to change ball-valve. The water is the CWSC is very mucky with this layer of crustiness on the top. So I'm wondering whether the cylinder coil might have pinholed. I reckon the first thing to try is just changing the ball-valve anyway.
So, thoughts on whether it's simple enough to change it (I've changed about 30 before but not with this set-up of piping) and whether there might be something else afoot...
