Cut out section of sheet rock, replace and redo, waterlines and drain lines for washing machine box as well as cap old line inside of wall, run new line underneath crawlspace and tie to main sewer. Customer noticed pressure drop on water on multiple fixtures were being used. Told customer next logical step would be to replace PRV customer also wanted to replace whole house shut off with new ball valve. Told customer if replacement PRV did not work more than likely mainline we need to replace as mainline is galvanize, steel pipe. Customer understood. Not responsible for sheet rock repair Tested all work thoroughly for any leaks