How Often Should You Refresh Your Spa Water? Tips for Hygienic Soaks

Changing the water in your spa is an important maintenance task that should be done regularly. The recommended time frame for changing the water in a spa is every 3-4 months. Here is why we suggest this time frame:
  • Chlorine dissolves more slowly and less effectively over time. As you continue adding more chlorine to your spa, it will eventually get to a point where the chlorine isn’t dissolved anymore.
  • The longer water sits stagnant, the greater the chance of bacteria growth and the risk of infection.
  • Over time, the water will become saturated with chemicals, making it more difficult to maintain a proper pH balance.
  • By changing the water frequently, you can also inspect your spa for any wear and tear, leaks or other maintenance issues.
  • Overall, it’s important to follow a schedule for changing spa water to maintain a clean and healthy spa environment for you and your guests to enjoy.

    How Often Should You Change the Water in a Spa?

    If you have a home spa, you likely enjoy relaxing in the warm, bubbly water after a long day. However, have you ever thought about how often you should change the water in your spa? While it may seem like a hassle, regularly changing the water in your spa is crucial for maintaining water quality, ensuring the safety of your spa, and ensuring that you can use it for years to come.

    Importance of Changing Spa Water

    One of the primary reasons you should change the water in your spa regularly is to maintain water quality. Over time, organic and inorganic contaminants can accumulate in the water, leading to cloudy water, unpleasant smells, and irritation to the skin and eyes. Regularly changing the water in your spa helps to eliminate these contaminants and keep the water fresh and clear.
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    Additionally, frequent water changes can help prevent the growth of harmful bacteria and algae, which can thrive in warm, stagnant water. Bacteria and algae can cause serious health problems, including skin infections, respiratory issues, and more. Another reason to change the water in your spa regularly is to protect the spa and its components. If water is left in the spa for too long, it can cause damage to the spa’s interior and exterior surfaces, plumbing, and even the spa’s motor or pump. Over time, this damage can result in costly repairs or even the need to replace the entire spa.

    Factors Affecting Water Quality in a Spa

    Several factors can affect the quality of the water in your spa, including: Usage: The more often you use your spa, the more frequently you should change the water. Chemical balance: If the chemical balance of the water is off, it can lead to cloudy water, bacterial growth, and other issues. Weather: If your spa is located outside, weather conditions such as heavy rain or high winds can introduce contaminants to the water. Cleaning frequency: If you do not clean your spa regularly, debris and contaminants can accumulate in the water more quickly.

    Signs That It’s Time to Change Spa Water

    While you should change your spa water every 3-4 months, there are several signs to look for that indicate it’s time for a water change. These include: Cloudy water: If the water appears cloudy or hazy, it’s a sign that the water quality has diminished, and it’s time for a change.
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    Unpleasant smell: If the water has an odor, it’s a sign that bacteria or other contaminants are present. Chemical imbalance: If you are having difficulty maintaining the appropriate chemical balance in your spa, it may be time for a water change.

    Steps to Take When Draining Spa Water

    When changing the water in your spa, it’s essential to follow the correct steps to ensure that the process is straightforward and safe. Here’s what to do: Step 1: Turn off the power to your spa. Step 2: Remove the spa cover and any accessories such as filters or skimmers. Step 3: Using a hose, drain the water out of your spa. Be sure to follow any local ordinances regarding water disposal. Step 4: Once the water is drained, thoroughly clean the spa’s interior surfaces using a non-abrasive cleaner. Step 5: Rinse the spa thoroughly to remove any remaining cleaning solution.

    Refilling and Balancing Spa Water

    After your spa has been cleaned and drained, it’s time to refill the spa with fresh water. Here’s what you need to do: Step 1: Refill the spa with clean water, making sure to follow any local ordinances regarding water usage. Step 2: Turn on the power to your spa. Step 3: Test the water with a spa test kit to ensure that the chemical balance is correct. Step 4: Adjust the chemical balance as needed.


    When refilling your spa, it’s a good idea to use a pre-filtration system, such as a hose filter, to remove any impurities from the water before it enters the spa.

    Tips for Maintaining Spa Water Quality

    Maintaining water quality in your spa is an ongoing process. Here are some tips to help you maintain water quality between water changes: Check chemical levels regularly: Test the water in your spa at least once a week and adjust the chemical balance as needed.
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    Clean your spa regularly: Remove any debris, scrub the interior surfaces of the spa, and clean any filters or skimmers regularly. Shower before entering the spa: Showering before entering the spa can help remove any contaminants from your skin. Keep the spa covered when not in use: A cover can help prevent debris and contaminants from entering the water.

    Benefits of Regular Spa Water Changes

    In addition to maintaining water quality and protecting your spa’s components, there are several other benefits to changing the water in your spa regularly. These include: Improved hygiene: Fresh water helps prevent the growth of bacteria and other harmful contaminants, improving the overall hygiene of your spa. Better performance: Regular water changes can help improve the performance of your spa’s pumps and motors. Reduced maintenance costs: By regularly maintaining your spa, you can reduce the need for costly repairs and replacements. Enhanced relaxation: Fresh, clear water can enhance the overall enjoyment of your spa experience.


    Changing the water in your spa regularly is essential for maintaining water quality, ensuring the safety of your spa, and protecting its components. While it may seem like a hassle, the benefits far outweigh the effort required to change the water regularly. By following the steps outlined above and maintaining your spa regularly, you can enjoy your spa for years to come.

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