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Load image into Gallery viewer, pH- (powder) - 5kg iopool iopool

pH- (powder) - 5kg

Regular price 21.95 EUR
Sale price 21.95 EUR Regular price
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This is a pre order item. We will ship it when it comes in stock.
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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.

iopool pH- is the perfect product to maintain your pool and hot tub water to the optimal levels for crystal clear water. This product is designed to be easy to use and quick to react, allowing for quick and easy pH adjustments. The iopool pH- is reliable and safe.

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.
  • Compatible with all treatments.
  • Compatible with all filtration systems.

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;
  • Disperse 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.

Customer Reviews

Based on 67 reviews
Jerome Balzac
délai et emballage peu satisfaisant

Délai important et emballage une nouvelle fois défecteur, une petite partie du PH- n'était plus dans le sceau qui était ouvert

Stéphane Graindorge
Vraiment pas terrible !

Depuis le début de cette saison, énormes blocs dans le sceau, très difficile a effriter…

Michel Dormal
Couvercle !

Très bien produit nickel pas cher du tout mais couvercle pas cher non plus . Arrivé cassé et produit dans la caisse pas trop grave mais 🥴

Bon produit, mais....

le produit est efficace, la correction est rapide mais lors de mes deux dernières commande les seaux sont arrivés exploser j'ai donc refusé les colis, je retente une 3 commande en espérant qu'il arrive en un seul morceaux et pas en plusieurs .

Patrick LANDRY
Parfait, comme d'habitude...

Produit très efficace et, grâce à la sonde, utilisé avec parcimonie.
Donc rentable car jamais de gâchis.

Gilles Lejeune

Commande de 2 seaux, 1 fissuré et remplacé immédiatement en sav. Bravo. Très bon produits . Je recommande

Martin Jongsma

pH- (powder) - 5kg