DRain from a drain point, on or near the boiler, near the pump or on the radiator valve, can't find any ?
Remove one radiator connect a cutting of 15mm pipe to the valve using a nut and olive and insert the pipe into a hose pipe - open the rad valve an it'll drain.
[quote="htg engineer"]An outside drain cock ??? do you mean PRV ?
DRain from a drain point, on or near the boiler, near the pump or on the radiator valve, can't find any ?
Remove one radiator connect a cutting of 15mm pipe to the valve using a nut and olive and insert the pipe into a hose pipe - open the rad valve an it'll drain.
thanks, I have fitted a new drain cock the old one was stuck in its seat.
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