Thank you very much. Your video of rebuild of valve helped me with fixing frozen Watts Mixing valve without removing from water inlets. Basically I was holding main circular screw with one plier and rotated the adjusting small screw with another plier. Earlier I didn't know if the small adjusting screw alone rotates and thought of replacing.
Glad it helped. Look around my channel. You may find other subjects of interest. Thanks for watching. Please subscribe! That is what keeps this channel running. Ron