Absolutely. Materials with Microban still need normal and frequent cleaning and disinfecting. Microban does not protect against hard water film buildup or stains, or soap scum residue. Also, the presence of Microban does not reduce the need or amount of sanitizers needed in a hot tub’s water. In fact, a hot tub or bath treated with Microban needs exactly the same level of maintenance and cleaning as one that is not treated with Microban.