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5 Essential Steps to Balance Your Spa Water for a Perfect Soak with Spa Fuel

Updated: May 15

If you want to enjoy a relaxing and safe soak in your spa, water balance is key. Properly balanced water not only feels great but also ensures your spa’s equipment lasts longer and prevents skin irritation. Spa Fuel’s premium water care products make maintaining a perfectly balanced spa a breeze. Here’s a simple 5-point guide to get your spa water just right.


1. Test Your Water Regularly

Before you start adjusting anything, you need to know where your water stands. Test your spa water at least once a week (or more often if you use the spa frequently) using a reliable test kit or strips. Pay close attention to three key factors: pH, alkalinity, and sanitizer levels (chlorine or bromine).

  • pH: Should be between 7.2 and 7.8.

  • Total Alkalinity: Should be between 80 and 120 ppm.

  • Sanitizer Levels: Follow the manufacturer's recommendation for your specific sanitizer.

Testing regularly helps you understand how your water is behaving and gives you a starting point for adjusting your chemicals.


2. Adjust the pH Levels

pH is crucial because it directly impacts the effectiveness of your sanitizer and the comfort of your skin. If your pH is too high (above 7.8), your spa water can become cloudy, and your sanitizer will be less effective. If it’s too low (below 7.2), it can cause skin irritation and even damage spa surfaces.

To adjust the pH:

  • Increase pH: Use a pH increaser or soda ash.

  • Decrease pH: Use a pH decreaser, such as muriatic acid or dry acid.

Aim for a pH level of 7.4 to 7.6 for optimal balance.


3. Balance Total Alkalinity

Total Alkalinity (TA) is like the water’s buffering system. It helps stabilize the pH level and keeps it from fluctuating too much. If your TA is too low, your pH will be unstable. If it’s too high, you might face issues with cloudy water or difficulty adjusting the pH.

  • Increase TA: Add an alkalinity increaser, usually baking soda.

  • Decrease TA: Use muriatic acid or dry acid to lower it.

A total alkalinity level of 80–120 ppm is ideal for most spas.


4. Sanitize and Shock Your Spa Water

Regular sanitization is key to preventing bacteria, algae, and harmful microorganisms from ruining your spa experience. Use a chlorine or bromine sanitizer to keep your water clean. Check the sanitizer level regularly to make sure it's within the recommended range.

In addition to regular sanitizing, shock your spa water at least once a week or after heavy use. Shocking the water breaks down organic matter like sweat, oils, and lotions, helping maintain clarity and sanitation. Spa Fuel’s shock treatments are quick and effective, making this step simple.


5. Add a Spa Scale and Stain Preventer

Over time, calcium and minerals can build up in your spa, leading to scaling and staining. Prevent this by adding a scale and stain preventer. It helps protect your spa’s surfaces and plumbing from mineral deposits, ensuring smooth operation and a clean look.

For the best results, use a high-quality product designed specifically for spas like Spa Fuel’s Scale and Stain Preventer. Regular use can save you time and money on repairs down the road.


Balancing your spa water may sound like a lot of work, but it doesn’t have to be complicated. By testing regularly, adjusting pH and alkalinity, ensuring proper sanitization, and preventing scale and stains, you’ll keep your water sparkling and safe. Spa Fuel’s range of products makes the process even easier, so you can focus on relaxing and enjoying your spa experience. Happy soaking!



By following these simple steps, you’ll be on your way to achieving the perfect spa water balance, ensuring a healthier, cleaner, and more enjoyable soak every time.

 
 
 

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Disclaimer: The color-coded system used in Spa Fuel branding is matched to the Pantone colours found in LaMotte Insta-TEST® 4 test strips. When your spa water is correctly balanced, the colours indicated for the four essential chemicals—Chlorine, pH+, Alkalinity, and Hardness—fall within the Pantone range used in Spa Fuel’s packaging and guides. For best results and accurate color comparison, we recommend using only LaMotte Insta-TEST® 4 strips. Please note that colours may vary when using test strips from other brands, and may not align with Spa Fuel’s packaging or guidance. This color alignment applies exclusively to the four essential chemicals range.

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