The shutoff valve will rotate in all directions.
ON is when the screwdriver slot is in line with the direction of the pipe.
OFF is when the screwdriver slot is across the direction of the pipe.
From ON to OFF is a quarter turn or 90 degrees
ON is when the screwdriver slot is in line with the direction of the pipe.
OFF is when the screwdriver slot is across the direction of the pipe.
From ON to OFF is a quarter turn or 90 degrees