1.) Fill a large bucket, bathtub, or sink with hot water in a 1:1:2 ratio, and combine borax, washing soda, and detergent to make the perfect cleaning solution. Stir until it is completely dissolved. 2.) Soak your clean towels in the mixture for a couple of hours, or until the water has cooled. To reduce the accumulation on the towels, try stirring the towel frequently. 3.) Drain the dirty water, then run a rinse-only cycle in your washing machine with your towels.