Insrteactions of use

Unscrew the valve base and screw the base of this scuba tool onto the male thread in the valve, then screw the second part of this tool (pin) on the base of the tool until feels resistant. Insert any kind of tool like a screwdriver or lever in the holes tool and keep screwing until the valve feels open. Pull slightly the upper part of the valve to create a gap between the 2 parts of the valve. Then unscrew the pin part of this tool and pull the upper part of the valve with the second part of the tool still on the valve. The valve is opened