Hi to all experienced plumbers.
I am attempting to replace my hot water storage tank, dad used to be a plumber so i have limited experience, will i need to drain central heating totally plus copper tank. is there anything i need to be aware of when doing this trying task
any help thanks
Isolate tank / feed for hot water cylinder ,usually in the loft some tanks have two or more valves at low level turn them off one at a time try your hot water taps if they stop your good to go once you have found which valve dose the hot water ,the other ones probably for the cold services in the bathroom.
Now turn off your immersion heater & boiler at the electric spur and put electric tape with a sign
saying do not turn on,or pull the fuses for the boiler & the immersion heater
go back in the loft and turn off the f&e tank feed & expansion tank that's usually the small tank that every one ignores,use the valve feeding it unless you can find the one coming out of the bottom.
once all this is done you are ready to drain down both heating and hot water
this is done by draining using a hose pipe connected too the drain off cocks
one for the hot water cylinder low level & more than one on the heating circuit on the ground floor..