Previous occupant has used pliers/mole grips etc to bleed rads. All are well rounded and a key will not work. All rads are pressed steel. Some have the bleed screw within a (1/2" square) screwed in retainer, on others the retainers are welded to the rads. The remains of the screw heads look different sizes. Intention is to drain the system, replace all bleed screws, inject inhibitor, refill system, cross fingers and walk away with a smile. Hopefully. I'm just wondering if these bleeding screws may be different dias/threads and would like to be prepared beforehand. I presume rad bleed screws of whatever flavour are readily available. Thanks, Nick.
- posted
11 years ago