Plumbing a Radiator and Identifying Feed and Return Pipes


Postby Deebee1 » Mon Jul 17, 2017 5:35 am

I have recently drained the system to replace all radiators, how can. I tell which is going to be the feed and return pipes now I can turn the combi boiler on
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Postby thekeymurphy » Tue Jul 18, 2017 2:35 pm

Does the pump have an arrow on it showing directional flow? If not, a bi-directional valve should do the trick. Alternatively, whichever one heats up first is the feed!
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Postby Deebee1 » Tue Jul 18, 2017 7:49 pm

Hi

Original post should have said the boiler cannot be turned on as the is no pipes attached etc so cannot feel which pipe gets hot first.
I believe the valves are multi directional these days so hopefully it won't matter when I re attach pies etc
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