Spa balancing products

• Use strips or a liquid kit (more accurate).
  
• Frequency: 1×/week, and always after a long swim or adding product.
  
  

• Targets: pH 7.2–7.8 · Total alkalinity 100–150 ppm · Calcium hardness 100–200 ppm
  
• Order: Alkalinity → pH → Hardness. Adjust only one parameter at a time. Wait 20-30 minutes between each product.

First, stabilize total alkalinity at 100–150 ppm. Proper alkalinity buffers pH and limits roller coasters. Then, fine-tune pH.

The ideal pH for a spa is generally between 7.2 and 7.6. Within this range, the water is more comfortable for the skin and eyes, the sanitizer (chlorine or bromine) works effectively, and the spa equipment is better protected against corrosion and scale buildup. A well-balanced pH is the foundation of good water quality in a spa.

• pH stability: alkalinity “buffers” the pH. Too low = pH roller coaster; too high = pH difficult to lower.
  
• Problem prevention: Correct alkalinity limits corrosion, turbidity and scaling.

Adjusting calcium hardness is essential for protecting your spa and keeping the water stable. Low calcium hardness makes the water corrosive, which can damage surfaces, heaters, jets, and other components over time. High calcium hardness, on the other hand, leads to cloudy water, scale buildup, and calcium deposits inside the spa and plumbing. Keeping calcium hardness in the ideal range of 100–200 ppm helps prevent corrosion, reduces scale formation, and keeps the water clearer, more stable, and more comfortable for bathers.

To raise the pH of your spa water, you need to use a "pH Plus" product specifically designed for spas. Pour in a small amount, according to the dosage recommended on the packaging and the volume of your spa, then let the jets run to thoroughly mix the product. After 15 to 30 minutes of circulation, retest the pH to check if the water is now within the ideal range. It's always best to raise the pH gradually rather than adding too much product all at once.

To lower a pH that is too high in a spa, use a "pH Minus" product (pH reducer for spas). First, measure the pH, then add the quantity indicated for the spa's volume, always with the pump and jets running to ensure the product is evenly distributed. After 15 to 30 minutes, test again to make sure the pH is back within the correct range. It's better to correct the pH in several small steps rather than lowering it too much all at once.

The pH of a spa can rise for several reasons: the water temperature, the action of air jets, excessive alkalinity, or the use of certain treatment products. Hot, agitated water naturally releases carbon dioxide, which raises the pH over time. Regular maintenance, frequent pH testing, and a proper alkalinity balance help limit these fluctuations and keep your spa water more stable.

The pH Minus product for spas generally works quite quickly, often within 10 to 30 minutes, depending on water circulation and temperature. After adding the product with the pump running, let the water circulate, then test the pH again to see if the value has returned to the ideal range. If necessary, a small adjustment can be made, always avoiding overdosing.