The plastic knobs on the wheel valve and lockshield valves on all my rads are 25 years old and crumbling, meaning I have to use a wrench to turn rads off or adjust temp. Are eplacement knobs available anywhere? Failing that, is it possible to get a tool that justs sits over the spindle of the valves instead of a wrench? (These are round with two flatted sides.)
I'm told the plastic does "go off" over the years. Is this a ploy to make you buy new valves just because the knob has cracked or crumbled?
I'm told the plastic does "go off" over the years. Is this a ploy to make you buy new valves just because the knob has cracked or crumbled?