Thank you, Dan. There's a chap coming next week to replace a boiler part, so I may as well ask him to have a go. I've just tried with pliers & I'm gradually destroying this blessed screw.
Hello
I recently bought my first house, so home ownership & maintenance is all quite new to me. I have a Baxi combi boiler with a combi-care compact filer cartridge next to it. The cartridge looks like it hasn't been replaced for quite a while, so I've bought a new one & am trying to change...