Draining heating system - no water coming out

[DIYnovice1]

I need to drain my heating system. I located the downstairs radiator with the drain off valve, attached a hosepipe and turned the valve...nothing comes out.

I've tried this on all the downstairs radiators with drain off valve, again nothing comes out. I tried to bleed the upstairs radiators to help it along but only water comes out, so there's definitely water in the system

The house is ten years old. Any ideas would be gratefully received. Thanks!

 

[Deleted member 120897]

How far did you undo the drain off? Also they could be stuck (happens usually on older systems), only other way is drain through the valve(s): attach a short piece of copper in the hose with a nut and olive and attach to one valve (afte disconnecting from the rad of course), and using a split compression stop end to plug the tail of the rad.

 

[Gasmk1]

what type of drain off valves photo would help

 

[DIYnovice1]

Thanks for the replies. I've just added some photos to my post. I turned the valves all the way until I couldn't turn them any more. But still nothing came out of either

 

[Deleted member 120897]

Which bit exactly are you turning?

 

[DIYnovice1]

Which bit exactly are you turning?

The bit at the top

 

[Deleted member 120897]

The bit at the top

It’s the bit on the side is the drain off 😉 you’ve closed the lockshield off

 

[DIYnovice1]

Oh, duh! But isn't that where I connect the hose?

 

[Deleted member 120897]

Oh, duh! But isn't that where I connect the hose?

Yes, they can be tricky and not the best design 🤦🏻‍♂️

 

[DIYnovice1]

Yes, they can be tricky and not the best design 🤦🏻‍♂️

Duh! Thank you. So I just need to open that and quickly get a hose on. Not the best design! Thanks for your help

 

[Deleted member 120897]

So I just need to open that and quickly get a hose on.

Yes, best of luck 😁 (FYI use a radiator bleed key to open)