I have someone next week to look at it. It hasn't been serviced in 15 years (I'm not the owner) so hope there isn't other things wrong inside the case.
Yes I have that at my partners and it's very straight forward to do. Don't understand why they think this plastic key thing is better.
I have used both hands to tighten as much as possible. I fear about taking pliers and twisting it more as it feels it could snap and cause a greater leak. Each time repressurising it the plastic square became harder to tighten. Last time I did it as tight as possible the water was still dripping...
So last time I managed to stop it dripping by turning the mains stop cock down to lower pressure. Accidentally the filling key was left in last night when refilling and the pressure on the boiler went all the way to the Max past the red mark taken the filling key out and using a bucket now until...
So is there a one way valve in the black plastic filling loop component to stop the heating water coming back out when the key is out?
I did see on YouTube some swapped it with a keyless loop, that would be better I think. Though this is quite old so the current piece will probably be brittle...
Went to repressurise the boiler. After tightening the square bit, and removing the key (key in unlocked position), there were some drips coming out. It seemed continuous rather than the left over splash that normally comes out. I only used my hand to tighten it but I did it quite tight.
I put...