Hardness 6 Chlorine.3ppm Arrived to the home, customer states existing Moen shower valve is very hard to turn. I diagnosed this issue as a failed shower cartridge. I provided options for the client, and they would like to move forward with the replacement. Turned off the water to the home. Drained the system down. Removed shower trim. Disconnected and removed existing shower cartridge. Checked integrity of valve body. Supplied and installed new Moen posi temp shower cartridge. Secured my connections and turned the water to the home to check for leaks. There are no leaks at this time. Caulked shower trim for client as well.