I have a shower stall with a single control knob that controls on\off (pull
> out for cold and push in for off) and hot\cold (left for hot, right for
> cold). The temperature setting on the gas-fired water heater is on the
> "normal" setting. Other faucets in the house seem to produce a lot hotter
> water when they run with only hot turned on. For a year or two now I've had
> to keep the combination hot\cold on\off handle almost all the way towards
> hot to keep the shower hot enough for a decent shower. I finally removed
> the round knob and the escutcheon plate to see what it looked like. There's
> a very small retangular cutout in the tile and the only thing that's visible
> are the two holes that mount the escutcheon plate. The diameter of the
> place where the knob mounts is a little bigger than the diameter of a
> nickel, and it appears to have what looks like the same type of fitting as
> with a garden hose valve when you remove the wheel handle - it looks simply
> an on\off function - I didn't seen anything that looks like other mixing
> valves that I've seen in pictures - nothing that looks like any adjustment
> screws or the like.
>
> Is this a situation where I simple remove and replace what the control knob
> attaches to? When I go looking for replacement parts, what's the proper
> terminology?
>
> If it's going to involve removing tile and all that, I can learn to live > with it.
>
> Thanks!
A relative in Georgia says that five or six months ago, suddenly one of the showers started only running hot water. Should I call the Georgia state AFL-CIO? How do I find out the name of the last plummer who was there?