Locate the tabs on either side of the sprinkler head's nozzle. Push the tabs to adjust how much water leaves the sprinkler's head.
Lift the head of the spike sprinkler and turn it to the desired degree. An image of the sprinkler's spray degrees will be etched on the top of the sprinkler. Choose the degree that suits your needs.
Turn the knob on top of the spike sprinkler nozzle clockwise to increase how far the water sprays and counterclockwise to decrease how far the water sprays from the sprinkler head.
Screw the spike sprinkler into the hose and stick it into the ground. Turn on the water to check your adjustments.