draining down C/H system


Postby Steve Batch » Thu Aug 27, 2009 4:57 pm

I have an outside drain cock when I open it nothing comes out do I have to turn rads off?
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Postby htg engineer » Fri Aug 28, 2009 7:50 pm

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.

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htg engineer
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Postby Steve Batch » Sat Aug 29, 2009 2:28 pm

[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.
Steve Batch
Posts: 2
Joined: Thu Aug 27, 2009 4:46 pm


Postby Steve the gas » Sun Aug 30, 2009 8:32 am

Beat me, thats the rubber stuck on its seat,very common.
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Joined: Sun May 04, 2008 7:07 am


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