HTH Calcium Hypochlorite Granules are a premium dry chlorine sanitiser for swimming pools, hot tubs, and spas, supplied in a convenient 10kg bucket. Manufactured by Lonza, HTH is one of the world’s leading dry chlorine brands and is trusted by commercial pool operators and pool maintenance professionals worldwide.

Calcium hypochlorite offers several practical advantages over other chlorine types. Its lower pH compared with many alternative sanitisers means up to 50% savings on pH correction costs, while its naturally low salt content reduces Total Dissolved Solids (TDS) build-up in pool water. Lower TDS means less frequent partial water changes, reduced plant corrosion, and better overall water quality.

The 10kg bucket format is suited to smaller commercial pools, spa facilities, and domestic pools where a manageable pack size is preferred. The secure lidded pail keeps granules dry and stable between uses.

Key features:

• Suitable for swimming pools, hot tubs, and spas
• Lower pH than many alternative sanitisers, reducing pH correction costs by up to 50%
• Low Total Dissolved Solids (TDS), reducing plant corrosion and equipment wear
• Low salt content, reducing the need for costly water dilution
• Added calcium helps protect pool grout and surfaces
• Suitable for hard and soft water conditions
• Supplied in a 10kg lidded bucket for safe, convenient storage
• Compatible with standard pool dosing equipment

Use a pool water test kit to check chlorine and pH levels before dosing. Always wear appropriate PPE and follow safe handling guidance when working with pool chemicals.