Repressurizing central heating system?

[mayo exile]

How do you repressurize your central heating system? I had to bleed a radiator and the pressure dropped. Its about 1.1 bar with the system on and will no doubt drop when system is cold. I think this is the filling loop.

[broken link removed]

 

[chrisboy]

Open the valve on the bottom right of picture and bleed all the rads.. Shut off valve again after..

 

[DGOBS]

As suggested above, but, only pressure to 1 - 1.5 bar when system is COLD, make sure the boiler/pump are off when bleeding any rads.

Excessive bleeding of rads means underlying ch problems, namely corrosion and would need to be addressed