The radiator makes unbearable noises throu out the night, which drives her insane. We think that this is due to air pockets in the pipes, we can hear crackling and water drops.
The heating system is common to the whole building, and I cant turn off hot water.
How do i open this shit
find the radiator that’s at the highest point/farthest from the boiler, get a container, open the valve you have pictured there and close it when there doesn’t seem to be any more air coming out. use the container to catch any water. make sure to refill the water heater for your heating system, they recycle the water, so the input valves are normally shut.
edit, just saw that you have a shared system, so ignore that last bit. but when in doubt, call the building super.
also, the fact that your GF gave you “one afternoon” to fix it, it kinda sounds like a toxic personality trait. if there’s anything else worrisome about her behavior, she might benefit from therapy. Having been in a relationship with someone with the dark triad, it was shit, and i kinda wish i would have been able to get her the help she needed.
Delete your therapy break up with your lawyer and hit your face