pH- (powder) - 5kg

Sale price$23.00 USD


Why use pH-

The pH- reduces the basicity of your swimming pool water. A good pH level helps to decrease corrosion, optimizes the effectiveness of disinfection products, and makes the water less aggressive for the skin and the eyes.

Use-it with app

You can free download our application on Apple Store (IOS) or Play Store (Android). Then you can follow advice from our recommendation engine to know when and how you can use our chemicals products.

Main advantages

  • High pH- concentration;
  • High pH- grade quality;
  • Ease of dissolution;
  • Speed of action;
  • Treatment efficiency;
  • A small amount of dust.

How it works

The pH indicates a concentration of hydrogen ions. High pH is poor in hydrogen ions. By being released into the water of your swimming pool, the pH + of iopool increase the concentration of hydrogen ions and decreases the basicity of your pH.


Related blog articles

Find helpful tips, tricks, and information about pH on our blog.

Usage advice

  • Activate the filtration of your swimming pool;
  • Dilute the pH- in a bucket of water;
  • Incorporate the mixture of water and pH- in your swimming pool.


  • Stabilize your pH before any disinfection treatment (chlorine and active oxygen);
  • pH modifiers are corrosive products that must be handled with precaution and do not spill on natural stones, clothing, and bare skin;
  • In case of very acidic water, correct it over several days.

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