How to Use Baking Soda for Hot Tubs

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Things You'll Need

  • Baking soda

  • Measuring cup

  • pH test kit

Baking soda can assist you in keeping the pH level of your water in the proper zone.

Baking soda can be quite helpful to homeowners who have hot tubs, as it can assist them in keeping the pH level of the water in the proper zone. As many homeowners know, the ideal pH for a hot tub or pool should be between 7.2 and 7.8. If the water is too acidic, it's going to quickly to wear out the heater element. Baking soda can raise the alkalinity of the water and bring your pH back up to an appropriate level.


Step 1

Measure 1 oz. of baking soda. Walk around the hot tub, sprinkling in the baking soda. Allow the water to sit for two to three hours.

Step 2

Turn on the jets for about 20 minutes. Take a pH test strip and dip it into the water for several seconds. Remove the test strip and place it on a flat surface. Wait 10 seconds.

Step 3

Compare the test strip to the guide in or on the box that the strips came in. This will indicate the pH level of the water. If the pH level is below 7.2, add another 1 oz. of baking soda to the water, and retest it after a few hours.



Lane Cummings

Lane Cummings is originally from New York City. She attended the High School of Performing Arts in dance before receiving her Bachelor of Arts in literature and her Master of Arts in Russian literature at the University of Chicago. She has lived in St. Petersburg, Russia, where she lectured and studied Russian. She began writing professionally in 2004 for the "St. Petersburg Times."