Calcium hypochlorite remains a popular choice for pool sanitization, delivering fast-acting disinfection without cyanuric acid buildup. This article highlights five highly relevant calcium hypochlorite products for American pools, focusing on tablets and granular forms that fit common feeders and maintain clear, safe water.
Summary of Selected Products
- Advantis Technologies CCH Calcium Hypochlorite Tablets (2-5/8 in., 50 lbs) – 68% available chlorine, cyanuric acid-free.
- Innovative Water Care CCH Endurance 3 Inch Tablets – 68% chlorine, includes test kit compatibility.
- In The Swim Pool Shock – 68% Cal-Hypo Granular Sanitizer (25 lbs) – versatile granular form for quick shock treatment.
- DryTec Calcium Hypochlorite Shock Treatment (1 lb, 24-Pack) – compact packaging for regular maintenance.
- POOL SHARK 68% Calcium Hypochlorite Pool Shock – 12 Pack Granules – fast-dissolving shock for quick turnover.
Advantis CCH Calcium Hypochlorite Tablets – 50 Lb
- Professional-grade calcium hypochlorite tablets designed for use with CCH Cal-Hypo Tablet Feeder.
- 68% available chlorine, cyanuric acid-free formulation for rapid sanitation without overstabilization.
- Exclusive anti-scale additive to improve feeder performance and reduce maintenance
- Not compatible with TriChlor feeders or standard chlorine tablet systems.
Innovative Water Care CCH Endurance 3 Inch Tablets
- Crystal-clear water with 68% chlorine content in a 3 inch tablet format.
- Includes My Garden Pool accessories: skimmer socks and 7-in-1 test strips for broad water testing.
- Designed for use in common pool feeders and compatible with standard maintenance routines.
CCH Endurance 3 Inch Cal Hypo Tablets – My Garden Pool Kit
- 3 inch calcium hypochlorite tablets with additional pool care accessories.
- Includes scum sponge, scum socks, and 7-in-1 test strips for balanced water.
- High-potency sanitizer to maintain clear water and reduce algae risk.
In The Swim Pool Shock – 68% Cal-Hypo Granular Sanitizer
- Granular cal-hypochlorite with 65-68% available chlorine for rapid shock treatment.
- Suitable for above-ground or in-ground pools, spas, and hot tubs; pre-dissolve to protect liners.
- Non-stabilized sanitizer ideal for routine maintenance and algae control.
DryTec Calcium Hypochlorite Shock 1 lb – 24 Pack
- One bag per 10,000 gallons as a guideline for dosing and maintenance.
- Adjust pH to 7.2–7.6 and maintain total alkalinity between 60–120 for optimal results.
- Compact 1-pound bags for easy handling and storage.
POOL SHARK 68% Calcium Hypochlorite Shock
- 68% active chlorine formula for fast-acting sanitation and algae control.
- Granular shock suitable for both inground and above-ground pools, including saltwater systems.
- Designed for universal pool compatibility with reliable performance.
Buying Guide: Key Considerations For Calcium Hypochlorite Purchases
- Form and compatibility: Tablets are convenient for feeders and floating devices, but granular cal hypo is often favored for shocks. Check feeder compatibility to prevent clogged dosing and uneven sanitizer levels.
- Chlorine content: Look for products with 65–68% available chlorine. Higher percentages enable faster disinfection but require careful dosing to avoid over-chlorination.
- Cyanuric acid (CYA) impact: Calcium hypochlorite generally lacks cyanuric acid, helping avoid overstabilization. For pools using stabilizers, monitor CYA levels to prevent reduced chlorine effectiveness.
- pH and alkalinity effects: Cal-Hypo can raise pH over time. Maintain target pH around 7.2–7.6 and total alkalinity 60–120 for balanced water and reduced corrosion or scaling risks.
- Feeder and system maintenance: Some products include anti-scaling additives or accessories that support feeder performance and reduce maintenance time. Ensure the product fits your feeder type and pool size.
- Pool type and use: Consider pool size, turnover rate, and whether you have an above-ground or in-ground pool, as well as any saltwater systems, when selecting a product.
- Storage and handling: Keep calcium hypochlorite in a cool, dry place and away from organic materials. Handle with protective gear as recommended by the label.
- Safety and compliance: Follow local regulations and label instructions for storage, handling, and disposal. Use proper dosing and never mix with other chemicals unless directed.