A reference is at: http://www.easyawn.com/acrobat/CareAndCleaning.pdf. Basically you should wash Sunbrella with Ivory soap--not flakes--take a bar of Ivory Soap and use a knief or grater and carve off flakes of the soap--do not use detergent! You can add 4 oz of Chlorox, 1/4 cup of the soap shavings and 1 gallon of warm water. Use a brush--if necessary soak the fabric. You should respray the cover with 303 for fabric (there are several 303"s) Bob Austin