Under kitchen sink removed old leaking disposal. Furnish and install disposal. Tested and disposal was working as it should and no leaks were present at this time. Customer also mentioned that kitchen sink would gurgle. Recommended first step to replace maintenance valve under sink. Installed new air, maintenance valve and tested. Couldn’t get gurgling to return. Furnish and installed new PRV with new main house shut off valve and also new rear hose bib with new shut off valve. Tested no leaks were at this time and pressure to 70 psi. Also in hallway bath cleaned out here out of tub drain and tested now tub is draining as it should . Cleaned up work area.