OK I'm officially baffled. The taps are turning more than 1/4 turn before the water stops and are way out of alignment as a result. So, tightened the grub screw but that only works for a short while and now the plastic teeth on the [ABCDEF*] have worn down and that [ABCDEF*] just spins around the 20 splines that open and close the flow of water. So I'm looking for 2 of those plastic [ABCDEF*] but can't search for them because I haven't got a clue what they're called. Can someone shine a light into my ignorance and tell me what they're called so my good lady can enjoy a bath without shouting at me?
Cheers!!
Cheers!!