Pouches dissolve in a gallon of water. 3 pouches per pack. Ideal for cleaning tough, greasy stains on driveways, sidewalks and other hard surfaces. Fill the bag with water to make up to 21 gallons of detergent or 1 gallon of concentrated cleaner. Freestanding bag can be placed on the ground, hung from a pressure washer or poured into a detergent tank. Effective cleaner is safe for use around plants and animals