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We also now include a special 2 foam roller handle with pad and mini-tray for easier application to vertical and larger surfaces. How long will it take me to do? It takes about 45 minutes to prep a standard tub, and maybe an hour to properly apply the first coat. Then 4-5 hours of drying time and then a second coat.
Use a non-abrasive detergent and rinse well after cleaning. 1  Fill the tub with hot water to at least two inches above the highest jet. 2  Add 2 teaspoons of low-suds automatic dishwasher detergent such as Cascade and 4 ounces of household bleach to the water. 3  Operate whirlpool for 10 minutes, drain.ir Bath System. Before the air bath tub is used the system should be flushed. 1  Fill bath with hot water to at least 6 inches above air injector holes. 2  Add 2 teaspoons of low sensing automatic dishwashing detergent and no more than 4 ounces of bleach to the water.