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airlock

View the thread, titled "airlock" which is posted in Air Sourced Heat Pumps Advice Forum on UK Plumbers Forums.

B

Balmoral

Should their be an aav on the flow and returnits an openvented system cant seem to get air lock out I
 
Small squirt of washing up liquid shot into f/e tank cold feed, let it pull into system, and run round primary circuit only as you've got to rinse it all out afterwards, if doesn't work first time try a little more, this does work and has helped loads of engs. I know, taught to me by my dodgy master when I was an app 22 yrs back
 
Small squirt of washing up liquid shot into f/e tank cold feed, let it pull into system, and run round primary circuit only as you've got to rinse it all out afterwards, if doesn't work first time try a little more, this does work and has helped loads of engs. I know, taught to me by my dodgy master when I was an app 22 yrs back

And what is that meant to do ??
 
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 🙂
 
cant see washing up liquid working. other than bubbles in the f and e

:lol: You have a lot to learn. Of course it works. Its a trick i learnt during the Boer war :lol:

You draw it into the system through a drain valve and the air gets caught up in the bubbles.

Wouldn't recommend doing it on a new boiler.
 
Bet you think about this next time though, hey? You know you will! Then think of all the hours wasted lol

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.
 
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
 
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.
 
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?
 

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