A storm drain needs to be working at 100 percent capacity at all times. If a storm hits and the drain cannot accommodate all the water that flows, there may potentially be major flooding which can lead to building and structural damage that may be expensive to repair. A working storm drain is essential for every building, house or home, and that drain needs to be cleaned on a regular basis to keep it working.
Put on your rubber gloves. This will protect you from your own cleaning supplies and whatever happens to be clogging the storm drain. Use your flat bladed screwdriver to pry up the storm drain cover. Lift it off and away to expose the actual drain itself.
Clean out the drain. Reach inside with your gloved hands and remove any noticeable gunk or debris. Discard anything you pull out. Clean the drain with your scrub brush. Cover your scrub brush with toilet bowl cleaner. Scrub the inside of the drain, along the edges and as far down, as your gloved hand will allow.
Rinse the drain with a full bucket of water. This will send anything you have loosened up with the scrub brush into the sewer system. Replace the cover.