If you've already got a detergent buildup, using a washing machine cleaner (i.e., Active, Affresh, Lemi Shine, Glisten, etc.) can help, but you may have to run several of them back to back to fully get rid of it all. As for a buildup in your laundry, once the machine is clean, you can run the affected laundry through on a normal cycle with no detergent, and using distilled white vinegar OR a fabric rinse in the rinse cycle. These products are acidic, while laundry detergent is basic, so they wor