Discover our articles in 1+1 free and 2+1 free! 😱

TH+ (powder) - 5kg

Regular price 24.95 EUR
Sale price 24.95 EUR Regular price
Sale Sold out
Unit price
Get 249 EcO points when buying this product.
Pay in 3x free of charge via
This is a pre order item. We will ship it when it comes in stock.
Pairs well with

Why use TH+?

TH+ powder is a calcium chloride-based product that quickly increases the TH of the water. The TH (Hydrotimetric Title) of swimming pool water is an important parameter that measures the hardness of the water, i.e. its content of dissolved calcium and magnesium salts. A balanced TH will contribute to a more stable pH and better protection of swimming pool installations.

What is TH?

The TH or Hydrotimetric Title corresponds to the hardness of the water, which designates its concentration in limestone.

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.

How it works

By being released in contact with your swimming pool water, iopool's TH+ releases calcium and magnesium ions, increasing the hardness of the water.

Main advantages

  • High TH+ concentration;
  • High-grade quality TH+;
  • A small amount of dust;
  • Fast efficiency;
  • Compatible with all treatments;
  • Compatible with all filtration systems.

Usage advice

  • Activate the filtration of your swimming pool;
  • Dilute the TH+ in a bucket of water;
  • Disperse the mixture of water and TH+ in your swimming pool.


  • A low total hardness may damage the liner and the plastic elements of the swimming pool;
  • A high total hardness may cause lime deposits to form on the waterline, the filtration system, and your equipment.

Please note that the above photo is non-contractual.

Customer Reviews

Based on 30 reviews

Le test de l'eau conseillait du TH. Le produit a fait le job .

Lucas Boschetti
Produit assez moyen

Le niveau de TH n'a pas beaucoup augmenté mais le produit a laissé un aspect laiteux à l'eau. Le robot était tout blanc plusieurs jours après, obligé d'aspirer plusieurs fois le fond pour retrouver une eau limpide. Je ne conseille pas.

Denis Locatelli
Arrivée détérioré

Sur les 2 containers, le couvercle d'un était ouvert suite à un choc et une partie de la poudre répandue dans le carton.

philippe beranger
TH+ inconnu du piscinier du quartier 😉

Bon produit préconisé par la sonde mais inconnu par les pisciniers du quartier

Still waiting for it

Delivery to the Canary Islands takes a while but I'm actually glad it's been shipped at all

Yoann Bechon
TH +

Super rapide en envoye et sérieux sur le SAV

christine dancourt
rapide et efficace

rapide et efficace