Last night I was unable to turn off my shower with an old Moen valve. Hot/cold was still easily adjustable, but in spite of numerous jiggling, wiggling, turning and banging (with my hand) and a few choice words, I could not push it in to turn off the flow. Its been sporadically difficult to push in for a few months, but wiggling it always worked in the past. So I shut off my water at the pump.
I did some web research and found several descriptions of how to get the cartridge out, but all of them showed a slot above the retaining clip. I don’t a slot on mine. The valve came with the house which I bought in 1989. But the house was built in the 50s. The lines are sweated on and their is no rear access panel. I’d guess that the valve was installed when the house was built, but I do not know this for sure.
The chrome face plate says MOEN on it but I was not able to find any model number.
Thanks in advance for any advice you can provide,