Please remember that this article contains general information only and is not intended as a complete spa care guide. Be sure to follow the instructions from your spa’s manufacturer.

Spa maintenance is based around keeping the water balanced, sanitized and filtered. All of the steps in spa maintenance are user-friendly, simple and straightforward. For most spas it is recommended to perform maintenance and change the water every 4-6 months.


Spa Maintenance Water Testing

The most important step in maintaining hot tubs and spas is chemically treating the water to eliminate bacteria. Your local pool and spa dealer will be able to help you test your spa water and determine the best chemical solutions to use. It’s not just getting the proper chemicals, but keeping them in the right range so you can get many years of enjoyment out of your hot tub.

When testing spa water, your dealer is determining the levels of the following:

 - Chlorine, Bromine, BaquaSpa, or Salt

 - pH

 - Total Alkalinity

- Stabilizer (if needed)

- Calcium Hardness

Calcium Hardness for Spas

Maintaining the range of calcium hardness your spa dealer suggests is very important. If it gets too high, scale will build up eventually causing your heating element to fail due to a chemical problem. This damage is typically not covered under warranty by the spa manufacturer.

pH Levels for Spas

pH levels that are too low, or too high, can cause damage to your spa and its heating element. High pH levels also lead to scale build up. Alkalinity acts as a buffer for the pH to help prevent rapid fluctuations. Stabilizer prevents sunlight from stripping chlorine, or bromine, out of your water.

Spa Filters

Most spas have a cartridge filter that must be kept clean and replaced regularly. It’s a good idea to have a replacement filter on hand. This way, when you’re soaking the dirty one in filter solution overnight, you have an extra to keep the spa operating and ready for use.


For questions on chemically treating hot tub and spa water, contact Medallion Pools or your local pool and spa dealer.