What is the best recipe for a homemade vinyl siding cleaner?

A simple and effective homemade vinyl siding cleaner recipe is to mix together 1/3 cup of laundry detergent, 2/3 cup of trisodium phosphate (TSP), 1 gallon of water, and 1 quart of household bleach. Apply the solution to the siding with a brush or a pressure washer, scrub gently, and then rinse thoroughly with water.