Here's the deal. I got a shower control knob that works like Moen. You pull it out, and the water comes on. Turn right or left to adjust temperature.
The "guts" are leaking, and the water drips out the head.
I can't remember the name of it since it was 20 years ago. It is a German name, we think, maybe Gruen. We THINK the letters in the name are maybe G, U, and/or Y.
Help appreciated.
I'll Google in the meantime, too.
Steve