Temperature Settings on Moen Single Handle Tub/Shower Faucet
I just installed a single handle tub/shower faucet, monticello 3128P The way to adjust the temperature is a little confusing: there is a small gray arrow at the top of the handle, which we thought was for the temperature, but when the arrow is pointed to the left (red) the shower is cold, and to the right (blue) the shower is hot. The plumber says that the handle itself indicates the temperature, so that when the bottom part of the handle is to the left (and the gray arrow is pointing right) the shower is hot, and when the bottom part of the handle is to the right (gray arrow pointing left) the shower is cold. Is he correct? And, if so, what is the purpose of the small gray arrow?