Struggling to drain sealed water system...

[brooky_agb]

Hi,

I have found two points to drain our heating. Its been nearly two hours now and water is still very slowly dribbling out. It's a sealed system and the upstairs rads are empty but the downstairs ones are full still.

All the upstairs bleed valves are open?! Why the heck is the waster so slow!? Is this normal.

 

[kevplumb]

open a bleed downstairs

 

[brooky_agb]

Two of the downstairs ones are open... all the other leak if I open them.

21 radiator system. Maybe I'll just leave it dribbling... :S

It should be faster though.

 

[kevplumb]

make sure ALL the valves are open count the turns on the lockshields

 

[brooky_agb]

Ah it'll be the lock shields. FFS this is a nightmare. It's taken me MONTHS to balance this damned system so I don't want to touch those. Aaaagh..... The only reason I'm doing this is because one of the rads in the bedroom wakes up up every morning chugging and gurgling at us but there doesn't seem to be any air in the system. The bloody system has been powerflushed and black sh!t just came out one of the rads I opened to allow me to put inhibitor in. I just can't win. Whats more its just as useless as when we had the open vented G rated 80's boiler.

I'm gona put the inhibitor in and fill it back up.

The annoying thing is that no plumbers want to even look at this damned system. :'(