Installed halo 5 with new Prv and whole home shutoff valve. After install I pressurized the unit and checked for leaks. Then I did the regeneration process before turning the filtered water on to the home. After I turned the filtration system on to the home I went to each fixture and ran water for two minutes to let air out. I tested every faucet for the chlorine and the pH. everything is good to go. Thank you for choosing TE Certified.