Pool Perfect® Max™ maintenance product that cleans pools in three ways. Added weekly, this product reduces the amount of time and effort you have to spend on pool care. Its key benefits include: working as a continuous filter cleaner, removing maintenance levels of problem-causing phosphates, reducing scrubbing of scum lines and waterline ring - polishing water to sparkle like never before. Simply add one capful per 10,000 1 gal of pool water each week so you can sit back and relax poolside!