I have 4 Adams buckets with lids in my garage. I add 2 oz Adams microfiber to about 3 gallons of water. 4 buckets for 4 different colors of towels. After using a towel, I put it in one of the buckets and let them soak. When I run low on towels, I wash them in cold water with Adams microfiber soap in the washing machine, dry them and put them into storage containers with lids. All my towels look new, no stains. I think soaking them after each use it the key.