hard water areas do this cleaning every fortnight or every week depending upon the requirement. mixture of baking soda and vinegar cleans the dirt and lime scales and keeps the drum clean.
so remember following points daily for easy and efficient maintenance of washing machine:always wash colored clothes and whites separately. while washing whites add a tablespoon or two of vinegar in fabric softener slot of soap dispenser and add a tea spoon of baking soda in the drum along with clothes and run the machine. whites come out clean and super white. vinegar and baking soda combination makes them super white and at the same time drum also gets cleaned. 