okay... well i just save all of the dirty ones (air dried) in a 5 gal bucket and when i used the last set that i have (total of 12 socks) i would soak them up with bleach over night.. then every night i would replace water in bucket with fresh ones for 2 nights then the 3 night i would use the wash machine like rodger said but without bleach.. just set it to whiteness white setting on the wash machine.. with extra rinse..