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How to Accurately Measure Spa Pool Chemical Levels

How to Accurately Measure Spa Pool Chemical Levels

Published by Jason Ford on 11th Sep 2024

At Hot Spring Spas Tauranga, we understand the importance of maintaining the perfect chemical balance in your spa pool. Whether you're using a traditional chlorine-based system or a more advanced solution like our FreshWater Salt System, properly balanced water ensures a clean, safe, and enjoyable spa experience. But achieving this balance starts with accurately measuring your spa pool's chemical levels. Here's a guide to help you through the process.

Why Accurate Measurement of Spa Pool Chemicals Is Important

Responsible spa pool ownership goes beyond just relaxing in warm water—it's about creating a safe and healthy environment. Properly balanced chemicals keep your water clear, soft, and free of harmful bacteria, while also ensuring it doesn’t cause skin irritation. In addition, maintaining the right chemical balance prolongs the lifespan of your spa by preventing issues like corrosion, scale build-up, or equipment damage.

What Chemicals Need to Be Measured?

To ensure your spa pool water is in the ideal range, you'll need to regularly measure:

  • Sanitiser levels: Chlorine, bromine, or salt sanitiser is essential for killing bacteria and keeping the water clean.
  • pH levels: The pH should be neither too acidic nor too alkaline, as either extreme can cause discomfort or damage to your spa.
  • Total alkalinity: This buffers your pH levels and helps prevent sudden changes.
  • Calcium hardness: Proper calcium levels prevent the water from corroding your spa’s equipment or forming scale.

Manual Testing Methods

The most traditional method for measuring spa pool chemicals is through manual testing using test strips or liquid test kits. You dip the test strip into the water, wait for it to change colour, and then compare the colours to a reference chart that indicates chemical levels.

While this is a common approach, it can sometimes be tricky, especially for new spa owners. Test strips may not always provide precise readings, and you might have to go through several rounds of testing and adjusting to get your chemical levels perfect. If adjustments are needed, you manually add spa pool chemicals —like chlorine or pH balancers—and test again until the levels are balanced.

Semi-Automated Testing Systems

For a more convenient option, many spa pools today, including those from Hot Spring Spas Tauranga, come with semi-automated systems such as the FreshWater Salt System or the FROG® cartridge system. While these systems still require occasional manual testing to check levels, they automate much of the sanitiser dosing. This means less work for you, and fewer chances of adding too much or too little sanitiser.

Over time, you'll learn how much sanitiser your spa uses and can fine-tune the settings to ensure optimal water quality with minimal effort.

Fully Automated Testing with FreshWater® IQ

For the ultimate in convenience and accuracy, our FreshWater® IQ system takes spa pool water care to the next level. This fully automated system constantly monitors your spa water, testing chlorine, salt, and pH levels every hour. Using digital sensors, it provides ultra-precise measurements, ensuring that your spa water is always in perfect condition.

With FreshWater® IQ, you don’t have to worry about test strips or handling loose chemicals. The system analyzes your water and offers clear recommendations through its digital interface, telling you exactly how to adjust the chemical balance. In many cases, the solution is as simple as pressing a button to activate the FreshWater Salt System, which adjusts the sanitiser levels accordingly.

How to Make Adjustments Based on Test Results

Once you've measured your spa pool’s chemical levels, the next step is making the necessary adjustments. If you’re using manual methods, this involves adding the required chemicals—like pH increasers or chlorine—based on the test results. Be sure to follow the recommended dosages on the product labels to avoid overcorrecting.

If you're using an automated system like FreshWater® IQ, the process is even simpler. The system will guide you through the adjustments, and in some cases, will make the changes for you automatically.

Benefits of Accurate Chemical Measurement and Balancing

By accurately measuring and balancing your spa pool's chemicals, you:

  • Enhance comfort: Balanced water is soft on your skin and eyes.
  • Ensure safety: Proper sanitisation prevents harmful bacteria from growing.
  • Save time and money: Systems like FreshWater® IQ reduce water and chemical waste, requiring fewer adjustments and less frequent water changes.
  • Extend spa lifespan: Well-maintained water protects your spa from damage caused by corrosive or scaling conditions.

Simplify Your Spa Pool Care with Hot Spring Spas Tauranga

Keeping your spa pool in perfect chemical balance doesn’t have to be difficult. Whether you're manually testing with spa pool test strips or using advanced technology like the FreshWater® IQ system, the key is regular and accurate measurement. At Hot Spring Spas Tauranga, we stock a range of spa chemicals and accessories, as well as high-tech solutions that take the guesswork out of spa care.

Visit us today to explore our collection of spa pools, swim spas, and spa maintenance products, and enjoy the cleanest, safest, and most relaxing water possible.

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