Key Features

Calcium hypochlorite granular is a high‑chlorine pool sanitizer designed to rapidly increase available chlorine levels in swimming pools and spas. It contains a high percentage of available chlorine, typically 65%–68% or higher, and dissolves quickly to deliver fast disinfection and oxidation. The free‑flowing granule form allows flexible dosing and is suitable for both routine maintenance and shock treatments for cloudy water or algae outbreaks.

Basic Specifications

Active ingredient: calcium hypochlorite (Ca(ClO)₂); Available chlorine content: minimum 65%–68% (varies by formulation); Appearance: white to off‑white free‑flowing granules; Typical mesh size: medium coarse granule for rapid dissolution; Storage: dry, cool, and ventilated conditions recommended to preserve available chlorine strength.

Product Description

Calcium hypochlorite granular is a granular form of chlorine sanitizer that releases hypochlorous acid—the active disinfecting agent—when dissolved in water. This product is widely used in swimming pools to kill bacteria, control algae, and oxidize organic contaminants. Granular chlorine products do not contain stabilizers such as cyanuric acid, which means they provide a rapid chlorine boost without contributing to overstabilization issues often seen with other chlorine forms.

Usage & Dosing

Apply calcium hypochlorite granules to pool water according to water volume and chlorine demand. For shock treatments, use a higher dose to quickly restore chlorine levels after heavy use or contamination. It is recommended to pre‑dissolve granules in a bucket of water before adding to the pool while the pump and filtration system run to ensure even distribution throughout the water. Granules are also suitable for small spas and hot tubs when used at appropriate dosages.

Benefits

Calcium hypochlorite granular offers fast‑acting and powerful disinfection thanks to its high available chlorine content. It effectively eliminates bacteria, algae, and organic waste, helping maintain clear and sanitary pool water. Compared with liquid chlorine, granular chlorine is more stable and easier to store for extended periods under recommended conditions. It is also a cost‑effective sanitizer that works well in various water treatment applications.

Applications

Used in residential and commercial swimming pools for both regular sanitation and shock chlorination. Ideal for indoor and outdoor pools, spas, hot tubs, and water features requiring rapid chlorine increase. Granular chlorine is also suitable for emergency water disinfection when immediate microbial control is needed, as well as for seasonal start‑up and algae control treatments.

Safety Information

Handle calcium hypochlorite granular with personal protective equipment such as gloves, goggles, and dust masks to prevent irritation from dust and chlorine gas. Avoid inhaling granule dust or allowing it to contact skin or eyes. Do not mix granular chlorine with other chemicals or acids, as dangerous reactions can occur. Always follow label directions and safety instructions.

Storage Instructions

Store granular calcium hypochlorite in airtight containers in a dry, cool, and ventilated area to retain available chlorine content and prevent moisture absorption. Keep away from heat, sparks, open flame, and incompatible substances like acids and organic materials. Periodically check condition and expiration to ensure effective sanitization performance when in use.