How long should you have to bleed your rads for once drained

[helptavner]

all seems fine - had system cleaned inhibitor etc put it, work carried out, plumber said that i might have to bleed it a bit,

one rad i have bleed twice in a week since hes been?

all others seem fine... ??

 

[HERTS P&D]

Don't forget only bleed when the system is off or you might end up putting more air back in.

Andy

 

[helptavner]

i know that bit

 

[tebreak]

usually, when you open the bleed screw, you can fel the outside of rad. for drop in temperature to guage the water level as it rises. you can also tell from the pitch in the hissing noise the air makes. when it gets near the bleed screw it gets higher pitched.

sticking an old towel under the rad. nnear the scew helps too!

i start with 1st. rad from the pump. seems odd you had to do it twice, could be trapped bubbles. more expereiced peeps might know better.

 

[Christian and Beccy]

I usually bleed mine initially, with the system off, then revisit after a few days once the system has run and had a chance for any other air to make its way round the system. I can usually get some more air out the second time, albeit not a lot!

 

[helptavner]

thanks!!

 

[helptavner]

thanks!!