I have to replace a mixer tap and the last time it was done someone did not fit isolator valves so i have to shut off the water and fit those too.
No problem for cold but how do i shut off the hot water supply. I have always had combi boilers but this one is a normal twin loft tank and hot water tank system.
I presume i need to drain the system, but how do i do that and how do i refill the system, also would this drain or affect the heating?
This type of CH & HW system is new to me so any help appreciated.
No problem for cold but how do i shut off the hot water supply. I have always had combi boilers but this one is a normal twin loft tank and hot water tank system.
I presume i need to drain the system, but how do i do that and how do i refill the system, also would this drain or affect the heating?
This type of CH & HW system is new to me so any help appreciated.