Homeowner is upgrading meter to a high pressure system and required gas regulators. Shut gas off at the main. Ran piping from the meter to the house and installed a 1 inch gas regulator. At the pool heater I removed the old gas piping. Reduced main line from 1-1/2 to 1 inch and installed the new gas regulator. Ran piping and shut off valve to the 3/4 line feeding the gas stove and fireplace. Ran 1 inch piping with a new bal lvalce to the pool heater. Reduced down to 3/4 and installed a union at the pool heater. Turned gas on and relit the water heater pilot lights. Painted the piping. Tested and everything is working properly at this time.