Its odd, valves under boilers seem to be made of a very soft plastic which often deforms and turns on the shaft.
But washing machine valve knobs seem to be a harder plastic and don't seem to deform so often. Sometimes they can fit on the boiler valve shafts.
Or just leave the bare shaft and keep a small adjustable spanner handy.
Tony
Oh, and I bought a washing machine right-angled valve for £2.49 which came with a red and blue handle and I put the red one on the boiler. Turns the CH outlet valve fine. Not a perfect fit, but not going to come off.
Although you don't seem to want to admit it, it seems that you have really found my posts very helpful indeed !
We have a "Thanks" button for that situation! You could make mine 4010 !
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