I think it seems to be more likely to be S plan, as I have two X 2 port valves.
But what is twisting my melon is why the valve being stuck OPEN would prevent me from getting hot water. In my feeble understanding it would be open for hot water, closed for no hot water. Which is why I wonder if the valve being broken is a red herring.
I think it seems to be more likely to be S plan, as I have two X 2 port valves.
But what is twisting my melon is why the valve being stuck OPEN would prevent me from getting hot water. In my feeble understanding it would be open for hot water, closed for no hot water. Which is why I wonder if the valve being broken is a red herring.
BTW. PM with apologies sent to @Mr_Sworld.