I am in the process of dismantling a mira 88 shower in order to service it (because the temperature knob was stuck on hot). I cannot remove the temperature spindle and everything I read suggests that it should come out. I've tried plumbers grease, heat, vinegar (for descaling) and even (probably shouldn't have) WD40, but it is stuck. Can somebody confirm that it is meant to remove and any tips on how to make it happen. Thank you.