Discharging the PTV.

1. Make sure the Air Pressure Regulator is turned fully counter-clockwise and the Drain Pump and Water Valves switches are in the Off position.
2. Slowly open the high pressure discharge valve while watching the pressure gauge and close the discharge valve at the desired pressure. Avoid shocking the system by reducing the pressure too fast.
3. Make a notation to the PTV log indicating the date, time, and pressure.