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Discuss airlock in the Air Sourced Heat Pumps area at Plumbers Forums

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Balmoral

Should their be an aav on the flow and returnits an openvented system cant seem to get air lock out I
 
There's no way, it would need flushing out, quick blast of mains pressure will do the trick or boiling it, or closing down rads. Far quicker than trying to get soapy water in the system and back out.
You can get it in quick enough and it will clear an air lock in around 2 minutes but you can never get it back out unless you drain and refill a few times which isn't going to happen.
When we were doing this it was on badly piped up systems on cast iron boilers.
I wouldn't recommend doing it these days.
 
You can get it in quick enough and it will clear an air lock in around 2 minutes but you can never get it back out unless you drain and refill a few times which isn't going to happen.
When we were doing this it was on badly piped up systems on cast iron boilers.
I wouldn't recommend doing it these days.

I saw an old boy use a large tin of beans on a big sectional cast iron boiler to stop a leak worked a treat would I do it now nooo
 
I saw an old boy use a large tin of beans on a big sectional cast iron boiler to stop a leak worked a treat would I do it now nooo

Strange things happened years ago. Pease brose (ask yer da) seals small leaks on water tanks too if you are stuck :smile:
 
It is a kind of flour made from peas mixed with oatmeal.
My granny used to make it :lol:

Not sure if you can still buy it. If you can it will probably be from some heath food specialty place with an up market price.
 
It is a kind of flour made from peas mixed with oatmeal.
My granny used to make it :lol:

Not sure if you can still buy it. If you can it will probably be from some heath food specialty place with an up market price.

Yep, mail order specialty shops :)
 
Bet you think about this next time though, hey? You know you will! Then think of all the hours wasted lol

filling an f & E with fairy then draining it down and refilling it seems to be a waste of time to me, but all to their own, it works for u tickety poo, lets not get too upourselves here or someone wont last long.
 
just pull out the thermostat on the boiler and let it warm up for a bit then pop it in an let things settle, dont even need to climb a ladder :) only for the brave and the customers gone out, can be a tadge noisy :)

Nice trick from bbu days? , were us the block phial on a combi? Next to the pilot u say?
 
What about trying powerflush in place of pump and shunt forward and reverse on primary line? But of palava setting up jus for air lock maybe but has that extra clout behind it
 
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