Both chlorine and bromine, the most common spa sanitizers, will kill black mold however spa pillows and your cover are not in the water hence, both are areas black mold will favor and can establish themselves.
The most effective way to prevent black mold is to use either our Total Maintenance or Triple Action Spray. Our Total Maintenance is designed to be added to your spa on a weekly basis and has many benefits to help you maintain your spa. It just happens that preventing black mold is one of these benefits.
