Concealed shower valve (polymer cartridge) - One way flow valve: maintenance and replacement

[@Peterade]

Thanks for a really clear and thorough demonstration.

[@cherylprax1]

I'm not seeing the replacement of the polymer thermostatic valve (only the diverter)?

[@ysnapzakazeeron]

I have a control unit whereby the temperatre handle at the bottom keeps spinning, would the temperature stop ring need replacing?

[@abracadabra999asdf]

I have the same. Haven’t found an answer yet