The homemade mildew cleaner is so effective and could not be easier.
If you have some other areas to clean outside, renting a pressure washer might be an excellent idea.
A standard pressure nozzle for your water hose will really get a lot done though.

Image By: HGTV Via YouTube
You will begin by removing your cushions, and wetting them down with a water hose.
Then you will make your cleaning mixture in a bucket and scrub your cushions.
Then you will rinse and set upright in the sun to dry.

