How often should the water be changed on a Grand Rapids portable spa?

We suggest you change your water every month. If you follow the correct water treatment method, you can reduce the frequency of water changes.

We strongly recommend you keep the spa covered when not in use. Make sure the water is in proper chemical balance, and operate the filter system regularly. Clean and replace the filter cartridge regularly.


The quality of the water inside your hot tub can be harmful to your health if it isn’t properly taken care of. The filter cartridge should be cleaned weekly and replaced when needed depending on use.

Please pay attention to the chemicals used and dosage. Spa damage resulting from misuse of chemicals is not covered by the warranty.

Water Balance: We recommend you maintain your water balance: PH value: 7.2 – 7.6; Free chlorine: 2ppm – 3ppm. Purchase a test kit to test your spa water before each use of the Spa, or at least once per week.

Water Sanitation: We suggest to use Chlorine granular / tablets to disinfect the spa’s water. (Chemical floater should be purchased separately). Never put tablets directly on the spa liner.

Cleaning the SPA: Clean the spa with soap and water, then rinse. Leave it outside (away from direct sunlight) to dry.

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