Drain Central Heating System
I need to drain the system down to do some pipe work to move an
upstairs radiator but i have not got any draining points. I'm told a
quick way is to remove a downstairs radiator screw on some kind of
valve to the radiator feed pipe and fix a hose to the other end.
Despite looking i have never seen such a valve, can anyone tell me if
they exist and where to get one.
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