Maintaining the ideal level of Total Alkalinity (TA) in your hot tub or swim spa is essential for clean, comfortable water. Whether you’re dealing with TA levels that are too high or too low, understanding how to adjust them will keep your water balanced and your equipment protected.
Test your hot tub or swim spa’s TA level at least twice per week, with a test kit or strips.
¿Qué es la alcalinidad total?
Total Alkalinity (TA) measures how well your hot tub or swim spa resists sudden pH changes. It acts as a buffer for pH stability, making it the first thing you should test and adjust before adding chemicals. Even if your water looks fine, out-of-balance TA can lead to bigger issues.
Ideal Total Alkalinity Range for Hot Tubs or Swim Spas
- Target range: 80–120 ppm
- Test your water at least twice per week using test strips or a liquid kit
- For accuracy, bring a water sample to your local dealer for monthly testing
Low Total Alkalinity in Your Hot Tub or Swim Spa: What Happens?
When you have low TA in a hot tub, your water becomes unstable and often too acidic.
Problems Caused by Low TA Include:
- Itchy skin and irritated eyes
- pH fluctuations
- Corrosion of heaters, pumps and pipes
- Damage to surfaces (etching, cracking)
- Reduced sanitizer effectiveness
How to Raise TA in a Hot Tub or Swim Spa:
Use an alkalinity increaser like Objetivo de la rana® to bring Total Alkalinity into the ideal range. The FROG TruDose Cap™ and easy-to-follow dosing instructions take the guesswork out of measuring the right amount for your hot tub or swim spa.
Follow these steps:
- Turn on your jets for circulation
- Add an alkalinity increaser like Objetivo de la rana to your unoccupied hot tub or swim spa
- Circulate the jets for 30 minutes with your cover off
- After 2 hours, retest water
- Repita según sea necesario
After adding your alkalinity increaser, always test the hot tub or swim spa water’s pH level. Lowering TA can also cause the pH to drop, so you may need to make small adjustments to balance both levels properly.
High Total Alkalinity: What to Watch For
One of the most common signs of high Total Alkalinity in a hot tub or swim spa is cloudy or murky water. High alkalinity can also make pH difficult to adjust and contribute to scale buildup, which can affect water flow and put added strain on your equipment.
Signs and problems associated with high Total Alkalinity include:
- Cloudy or murky water
- Scaling on surfaces and equipment
- pH that is difficult to adjust
- Clogged filters and pipes
- Reduced water circulation
- Added strain on pumps and other equipment
How to Lower Alkalinity in a Hot Tub or Swim Spa:
Use an alkalinity decreaser like Caída de rana™ to bring Total Alkalinity into the ideal range. The FROG TruDose Cap™ and easy-to-follow dosing instructions take the guesswork out of measuring the right amount for your hot tub or swim spa.
- Turn on the jets to circulate the water
- Agregar Caída de rana to the unoccupied hot tub or swim spa according to the dosing instructions
- Leave the cover off and circulate the water for 15 minutes
- Retest the water
- If needed, repeat with small doses until Total Alkalinity reaches the ideal range
After adding your chosen product, always test the hot tub or swim spa water’s pH level. Lowering TA can also cause the pH to drop, so you may need to make small adjustments to balance both levels properly.
See, Feel and Smell the Difference
RANA® Sanitizing Systems transform your hot tub or swim spa by combining proprietary FROG Sanitizing Minerals® with low levels of chlorine to destroy bacteria. The result is Fresh Mineral Water®∞, our signature water quality experience that’s gentler on skin and free from the harsh, over-chlorinated feel of traditional hot tub care.
- Uses up to 75% less chlorine*
- Creates water that is Cleaner, Clearer and Softer
- Easier on skin, swimsuits and hot tub surfaces
- No harsh odors
* En comparación con el nivel mínimo de cloro recomendado por ANSI de 2,0 ppm para una bañera de hidromasaje o piscina con sistema de natación contracorriente.
∞ Agua más limpia, cristalina y suave para piscinas, jacuzzis y spas de natación.
