Adjusting a Hunter PGP (Professional Grade Pop-up) sprinkler head is a fairly straightforward process. Here are the steps to follow:

  1. First, make sure the water to the sprinkler system is turned off. This will prevent any water from spraying while you're working on the sprinkler head.

  2. Locate the adjustment screw on top of the sprinkler head. This screw is usually located in the center of the sprinkler head, and it will be marked with a directional arrow and a plus and minus sign.

  3. Use a flathead screwdriver to turn the adjustment screw counterclockwise to decrease the spray distance or clockwise to increase the spray distance. The directional arrow on the top of the sprinkler head will indicate the direction of the spray pattern.

  4. To adjust the spray pattern, use the plastic key included with the sprinkler head or a flathead screwdriver. Insert the key or screwdriver into the small slot on top of the sprinkler head and turn it counterclockwise to increase the spray angle or clockwise to decrease the spray angle.

  5. Finally, turn the water back on and observe the sprinkler head to ensure that the spray pattern and distance are adjusted to your desired settings. You may need to make further adjustments until you achieve the desired coverage.

That's it! With these simple steps, you should be able to adjust your Hunter PGP sprinkler head to meet your lawn's watering needs.