I have a newer home, built in 98, with one piece tub/shower units,
the tub has a single handled delta faucet that can be turned 180 degrees to
turn on the water.
well, the tub is not regularly used, and the faucet it leaking now.
I took the handle off, and the little guide that limits how far you can turn
the faucet.
Once the brass guide (or what ever it is called) is off, you can spin the
handle around 360 degree's continually.
I spun it all the way around hoping that it would stop the dripping /
running faucet. with no luck.

With the guide off I can adjust the handle to a point that has the water
dripping about 1 drop per second, (that's the best is does)
but, the valve is in a position that would prevent me from putting the guide
back on, I'm guessing that a washer of some type is damaged or worn out
inside the assembly, How do you get inside one of those faucets? it does
not seems like I can service it as it is all closed, or so it appears. Is
it possible to replace a seal inside the tap, and can I do it without
wrecking the tub unit?

Dave