I have a great tip for making a smelly clothes washer smell fresh and clean, given to me by a Maytag repairman. Simply run dishwasher detergent powder, not liquid, through your machine with no clothing in it, about once or twice a month.
It works and it is cheaper than the specialized products that do the same thing. Use the same amount you would use of laundry detergent for your particular machine.
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