1. Locate the washer fluid reservoir under the hood of your vehicle. It is typically a translucent white or blue plastic tank with a cap on top.
2. Remove the cap from the washer fluid reservoir.
3. Inside the reservoir, you will see a small hole or tube that leads to the windshield squirters.
4. Insert the end of a small hex key or screwdriver into the hole or tube.
5. Turn the hex key or screwdriver clockwise to increase the strength of the windshield squirters, or counterclockwise to decrease the strength.
6. Test the windshield squirters to make sure they are spraying at the desired strength.
7. Replace the cap on the washer fluid reservoir.
Note: If you cannot find the washer fluid reservoir or the hole or tube that leads to the windshield squirters, consult your vehicle's owner's manual.