The first initial visit was forward to come out and take a look at a shower that would not turn on at all the lever for the single handle shower valve when you turn it on no water would come out so that was indicating that it was a cartridge issue so what I recommended at the time is to replace the Moen cartridge with a brand new one that is exactly what we did Took off the old plate remove the old caulking, from the trim plate and off the tile, remove the pen from the cartridge, cleaned the inside of the shower, body valve lubricated the shower, body valve, inserted the new cartridge put the pin back, put the trim back, and then put everything else back together once I was complete. There’s no leaks took a video of the shower about working with water coming out of it caulk the template so no water would get behind the wall at this time. There’s no further issues with the shower.