Venting UFH loop via boiler fill loop

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28 Oct 2021
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Just wondering if there are any issues with adding water to a UFH via the boiler filling loop… reason being wanting to flush out some gunk from a loop and ventilate but don’t have access at the moment to proper hose connection adapter so I can plug mains water at the manifold.

Was thinking to flush by closing all loops and leaving one open while boiler pump circulates water and add new water via boiler filling loop…
 
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Hi,
I am not a plumber - I can not say whether what you intend to do is right, or wrong!

But, surely it would be better to isolate your boiler, rads and loops etc. and just use the filling loop to flush out the pipe?
It could be at a higher pressure than the boiler pump and wouldn't risk any damage to the boiler.

Just a thought! :)
 
Ended up getting the right connectors and flushed the loops one by one. Worked out pretty good in the end.
 

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