Commercial hotels, resorts in Mombasa and Diani, athletic clubs, and school facilities across Kenya require regular chemical shock treatment (superchlorination) to burn off combined chlorine (chloramines), destroy algal blooms, and eradicate chlorine-resistant pathogens. KIKI'S supplies premium Calcium Hypochlorite 70% (shock granules), stabilized Sodium Hypochlorite, Hydrochloric Acid 33% (pH trim), and Soda Ash for rapid water clearing and biological safety.
For swimming pool shock disinfection applications, KIKI'S Industrial Chemicals supplies documented industrial-grade raw materials and specialty formulation chemicals. We provide consistent chemical inputs and technical documentation to commercial operators across Kenya and the East African market.
Swimming pool shock disinfection (superchlorination) is the periodic addition of high concentrations of oxidizing chlorine compounds to swimming pool water to destroy combined chloramines, kill organic algae blooms, and sanitize pathogen contamination.
Key Facts
Primary Use Cases
In busy commercial swimming pools, bather waste—including sweat, urine, cosmetics, and organic matter—reacts with free chlorine to form combined chlorine compounds known as chloramines (monochloramine, dichloramine, and nitrogen trichloride). Chloramines possess virtually no biocidal power, produce the harsh chemical 'chlorine smell', and cause stinging eyes and skin irritation in swimmers.
Routine daily chlorination (1–3 ppm) cannot eliminate accumulated chloramines. Plant operators must achieve breakpoint chlorination—a chemical process where free chlorine concentration is rapidly raised to at least 10 times the measured combined chlorine level (typically 10–20 ppm free chlorine). High-potency Calcium Hypochlorite 70% granules oxidize chloramines completely into harmless nitrogen gas and water, destroying the foul smell and restoring sparkling water clarity.
During heavy rainy seasons or hot coastal sunny spells, algae spores bloom rapidly into green, black, or mustard algae that coat pool walls. Superchlorination with Calcium Hypochlorite 70% oxidizes algal chlorophyll structures within hours. Following shock treatment, Hydrochloric Acid (33%) or Soda Ash is used to re-balance pool pH strictly between 7.2 and 7.6, ensuring maximum hypochlorous acid (HOCl) availability and swimming comfort.
Granular calcium hypochlorite 70%, cyanuric acid stabilizer, dry acid (sodium bisulphate), and pool flocculants.
Water Chemistry Testing & pH Balancing
Testing pool water for free chlorine, combined chlorine, and pH, adjusting pH to 7.2–7.4 before shocking.
Chemical Shock Dosage Calculation
Calculating Calcium Hypochlorite 70% dosage to achieve breakpoint chlorination (typically 150–200g per 10,000 liters).
Granule Pre-Dissolution & Broadcast
Pre-dissolving granules in a bucket of pool water and broadcasting evenly around the perimeter during evening hours.
Continuous 24-Hour Filtration Run
Running main circulation pumps and sand filters continuously overnight to disperse chlorine and filter dead algae.
Backwash & Swimmer Re-Entry QC
Backwashing sand filters to flush dead particulate matter and verifying free chlorine drops below 3.0 ppm before opening.
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High-test Calcium Hypochlorite 70% chlorine granules for municipal water chlorination, swimming pool shock treatment,…
CAS 7778-54-3 · Water Treatment / Swimming Pool Grade (Sodium Process High Test) · White / Off-White Granules
Oxidizes irritating combined chloramines, eliminating eye burn and foul chemical pool odors.
Destroys resistant green and black algae blooms, restoring brilliant turquoise water clarity within 24 hours.
High free chlorine levels eradicate resistant protozoan cysts like Cryptosporidium and Giardia.
Concentrated dry granules deliver maximum available chlorine with low freight costs and stable storage.
COMMERCIAL & TECHNICAL GUIDANCE
Technical and process guidance for swimming pool shock disinfection in Kenya and East Africa.
Breakpoint chlorination is the threshold where sufficient free chlorine is added to oxidize all combined chlorine (chloramines). To reach breakpoint, measure combined chlorine (Total Chlorine minus Free Chlorine) and multiply by 10. Add enough Calcium Hypochlorite 70% to deliver that target ppm (typically 10 to 15 ppm).