Replaced 50 gal gas water heater with new shut off, new thermal expansion tank, new pan with a drain running to the exterior of the home, new gas whip and valve, new drip leg. Also replaced prv and main valve. Replaced ice maker box and washer box, cartridge in upstairs bathroom, and added a hammer arrestor for the dishwasher supply line. Restored water and tested for leaks. Purged air from lines, set new heater to 120 degrees. No issues when we left.