What Do You Use to Clean an Empty Hot Tub?

Written by annie carter
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What Do You Use to Clean an Empty Hot Tub?
Hot tubs can be cleaned using ingredients already in your home. (Jupiterimages/Comstock/Getty Images)

Hot tubs are great to have to soak away any aches or pains, but they require cleaning every three months in order to stay sanitary. Hot tubs that are not cleaned regularly can develop mildew and other pathogens that can be transferred to humans when in use. There are several ways to clean hot tubs using both household cleaners and other ingredients found around the home.

Mild Bathroom Cleaners

Mild bathroom cleaners may be used to clean the acrylic shell of the hot tub after the water has been removed. Spray the shell with the cleaner and use a soft sponge or cloth to wipe clean. The mild bathroom cleaner will both clean off any residue from the chemicals in the water, as well as disinfect the shell from any pathogens that may have been in the water.

White Vinegar and Water

Using a mixture of one part white vinegar and one part water will help clean your hot tub and work away at the calcium build-up and residue. The cleaning solution will also work to clean any fixtures on your hot tub. The tub should be rinsed completely of any remaining vinegar before being refilled.

Baking Soda

A paste mixture of baking soda and water cleans off any calcium build-up and dirt that forms on the surface of the hot tub shell. The mixture should be scrubbed in using a circular motion. Rinse thoroughly before refilling the hot tub.


When cleaning your hot tub, never use any harsh or abrasive cleaners or anything that contains bleach, as these substances will harm the acrylic coating of the shell. These types of cleaners can also scratch or otherwise damage the shell. Only use soft cloths or sponges to clean the hot tub, because anything else could scratch the surface.

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