Shower Mixing Valve Cartridge Replacement
The telephone cord-style shower head on our 1974 International Airstream is leaking an increasing stream of water even when the water is turned off. I suspect that the original shower mixing valve cartridge ( part no. 1200 ) may need to be replaced, but I also note that the handle perhaps does not go down far enough along the "stop tube" ( part no. 100089 ).
The local dealer has not had any success in locating replacement parts from Ohio, but I'm wondering whether at least a Moen mixing valve cartridge could be located in a Lowe's or Home Depot.
MY QUESTION: Which current Moen cartridge model number is the right one ? Finding another stop tube would be a bonus.
I've included an attachment of the original service manual for this area of the trailer.
Thanks for any and all advice!
John ( Seattle/Winthrop )