To allow gas to press from the regulator high-pressure chamber to the low-pressure chamber, what should you do with the regulator adjusting screw?

Turning the regulator adjusting screw to the right increases the pressure in the regulator's high-pressure chamber, allowing gas to flow from that chamber into the low-pressure chamber. This adjustment is essential for controlling the pressure output to the desired level, which is particularly important for maintaining safe and effective operation in applications like brazing. Adjusting the screw in this manner ensures that the gas pressure reaches the appropriate setting for optimal performance.

Other methods of adjusting the screw, such as turning it left or leaving it in place, would not facilitate the necessary pressurization needed for gas to flow correctly from the high-pressure to the low-pressure chamber. Turning it down does not apply to this context as it does not refer to the correct operation of the regulator. Therefore, adjusting the screw to the right is the appropriate action for achieving the intended gas flow.