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What is hth Calcium Hypochlorite?

hth Calcium Hypochlorite manufactured by Lonza, is one of the world’s leading brands of dry chlorine. Increasingly many pool operators are changing to hth calcium hypochlorite because it is one of the safest and most economical methods of pool water treatment.

The sheer convenience of hth calcium hypochlorite and the absence of bulk storage tanks is one reason for its rapid growth in popularity - hth can use fewer chemicals for pH correction and waste less water for Total dissolved Solids (TDS) control than many other sanitisers.

The Health and Safety Executive (HSE) calls for a product to be used in its safest possible form. It states liquids are safer than gases, granules are safer than liquids and briquettes are safer than granules.
hth dry chlorine products are available in a choice of granular or briquette form and with standard or Easiflo® options, all in a variety of pack sizes to suit any pool.

hth Briquettes are dosed via a dedicated briquette chlorine feeder system, our Granular product range can be dosed via dedicated feeder systems or pump and tank systems.

A guide to Chemical Safety

Benefits of using hth

With a lower pH than many other sanitisers, hth can achieve a saving of up to 50% on pH correction costs

hth provides a low level of Total Dissolved Solids (TDS) and therefore reduces plant corrosion

hth contains much less salts than many alternative sanitisers - reducing the requirement, time and energy of costly water dilution

hth is suitable for hard and soft water conditions and has added calcium to help prevent grout loss

hth customers benefit from our support services including site surveys, plant room audits, technical advice and product training.

Compare hth with alternative sanitisers

View our quick comparison chart.