As above every so often my shower diverter controls scale up and become stiff to use. Just seems a bad design to me but it’s a pain in the arse freeing it off, stripping it and putting it back together. Tried all different types lubricants - grease, wd40, butter, olive oil, none at all... and they all work for a while. Just wondered if there’s any water resistant lubricant I could use. Sorted it for now but next time I want to use something more permanent. This is the shower I have and this’d are the controls that seize up with limescale.
