This is absolutely normal as gas is trapped inside the regulator's chamber. To completely release gas from the regulator, power up your solenoid and open needle valve. Gas will escape from the regulator and both gauges will read 0.
This is absolutely normal as gas is trapped inside the regulator's chamber. To completely release gas from the regulator, power up your solenoid and open needle valve. Gas will escape from the regulator and both gauges will read 0.