Importance of Hot Tub Test Strips for Water Maintenance

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Hot tubs provide a wonderful way to relax, unwind, and enjoy therapeutic benefits. However, to ensure a safe and hygienic soaking experience, it is essential to maintain the water quality in your hot tub. This is where hot tub test strips come into play. These small but powerful tools are designed to help hot tub owners monitor and balance the chemical levels in the water, ensuring it remains clean and safe for use. In this post, we discuss the significance of test strips and how they contribute to maintaining optimal water conditions.

The Role of Hot Tub Test Strips

Hot tub test strips are simple yet indispensable tools that allow you to test various aspects of the water chemistry in your 6-seater hot tub. They are typically made of paper or plastic and have reactive pads or patches that change colour when exposed to different chemicals in the water. By comparing the resulting colours to a colour chart provided on the packaging, you can determine the concentration levels of important water parameters.

pH Level

One of the crucial factors to monitor in hot tub water is its pH level. Test strips help you assess the acidity or alkalinity of the water, which is important for the effectiveness of sanitisers and the overall comfort of bathers. Maintaining the pH within the recommended range (usually between 7.2 and 7.8) ensures that the water is neither too acidic nor too alkaline.

Sanitizer Levels

Hot tubs require sanitisers, such as chlorine or bromine, to kill bacteria, viruses, and other microorganisms that can thrive in warm water. Test strips help you measure the concentration of sanitisers in the water, allowing you to adjust their levels to keep the water properly disinfected. Maintaining appropriate sanitiser levels ensures a safe and healthy soaking experience.

Total Alkalinity

Total alkalinity refers to the ability of the water to resist changes in pH. Test strips help determine the total alkalinity levels, which should be maintained within the recommended range (usually between 80 and 120 parts per million). Proper total alkalinity helps stabilise the pH level, preventing fluctuations that could lead to discomfort and equipment damage.

Calcium Hardness

Calcium hardness measures the amount of dissolved calcium in the water. High calcium levels can lead to scale buildup on hot tub surfaces and equipment, while low levels can cause corrosion. Test strips help you monitor and adjust calcium hardness, ensuring it remains within the ideal range (usually between 150 and 250 parts per million).

Using Hot Tub Test Strips Effectively

  • Read and understand the instructions provided with the test strips. There may be different guidelines for different products depending on the manufacturer.
  • Test the water at least once or twice a week, depending on usage and environmental factors. Additionally, test the water after any significant event, such as heavy rainfall or a large number of bathers using the hot tub.
  • Keep the test strips in a cool, dry place, away from direct sunlight and moisture. Exposure to extreme heat or humidity can alter their accuracy.
  • Test strips have an expiration date, so make sure to use them before they expire. Water maintenance can be compromised by expired strips providing inaccurate readings.
  • Be sure to keep a record of your test results to keep track of any patterns or changes in your water’s chemistry over time. This will help you identify trends and make necessary adjustments to maintain optimal water conditions.

By using test strips effectively and taking appropriate actions based on the results, you can extend the lifespan of your hot tub, such as a 2-person hot tub etc., protect its equipment, and avoid potential health risks. So, make hot tub test strips an essential part of your routine maintenance to enjoy the benefits of a clean and inviting hot tub all year round.


Hot tub test strips are vital tools for hot tub owners to monitor and maintain water quality. Regularly testing key parameters such as pH levels, sanitiser concentrations etc., ensures a safe, comfortable, and hygienic hot tub experience for yourself and your guests.

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