I'm having trouble with my second floor shower. It's a Moen Adler single handle with I'm assuming the posi temp. I'm in the middle of replacing my water heater. Tank is drained, no hot water in the house at all. All of my other fixtures have cold water and good pressure except the upstairs shower. Water comes out but not very strong. Also if i continue to rotate the handle to the hot side I get water that comes out, which shouldn't happen since there's no water being pumped through the hot water lines. I'm suspecting the shower valve is somehow letting cold water past and into the hot water lines. If I don't have the inline hot water shut off closed that leads to the shower, water will back fill through the hot water lines and into the empty water heater. I've yet to contact Moen but plan to later today.
I'm pretty novice with plumbing so any input is appreciated. Thanks!
I'm pretty novice with plumbing so any input is appreciated. Thanks!