Customer stated on first visit tech looked at shower but could not fix it and left with the trim. Hall bathroom shower cartridge blocked up with something and need to be replaced. Trim is also missing Replaced moen posi temp cartridge and tested. After turning water back on and running shower cartridge instantly clogged up again. Once I removed the new cartridge and cleared sediment that was blocking it I blew out the valve to clear remaining sediment and reinstalled the cartridge. Testing now shows no other issues with shower. Replaced shower trim Job is completed.