HTH 1LB Super Shock Granules 6-Pack

HTH 1LB Super Shock Granules 6-Pack delivers 54% available chlorine through calcium hypochlorite (56.44%) in a fast-dissolving granular formula that clears cloudy pool water within 24 hours. The 4-in-1 formula kills bacteria, prevents algae, reduces chlorine odor, and restores water clarity without adding cyanuric acid (CYA). Safe for vinyl, fiberglass, and concrete pools, it’s compatible with salt water systems.

For Montana’s short pool season, this product’s rapid 24-hour performance window matters. Individual 1 lb pouches prevent moisture damage during storage in variable weather conditions — a practical consideration when pool chemicals sit unused through long winters.

Professional-Grade Chlorine Concentration

At 54% available chlorine, HTH Super Shock runs 5x stronger than standard liquid chlorine shock treatments. That concentration efficiency matters for contractors managing multiple service accounts. Less product hauled, stored, and applied for the same sanitizing power.

The molecular weight of 143.00 g/mol and pH level of 10-11.5 (in 1% solution) put this squarely in professional-grade territory. EPA Registration Number 1258-1250 confirms compliance for residential pool use.

Specification	Value
Active Ingredient	Calcium Hypochlorite (56.44%)
Available Chlorine	54%
pH (1% solution)	10 - 11.5
Package Size	6 x 1 lb bags
EPA Registration	1258-1250

CYA-Free Formula and Application Benefits

Unlike Trichlor-based shocks, HTH Super Shock does not add Cyanuric Acid (CYA), preventing ‘chlorine lock’ or over-stabilization. Pool professionals understand the headache of managing CYA buildup — once levels exceed 100 ppm, chlorine effectiveness drops dramatically. This formula sidesteps that problem entirely.

Application rate runs 1 lb (one bag) per 10,000 gallons of pool water. Preparation requires pH between 7.2 and 7.6, continuous filter operation, brushing algae if present, then broadcasting granules directly into the deep end while walking the perimeter. Wait at least 24 hours and ensure free available chlorine levels are between 1-4 ppm before re-entering the pool.

The granules dissolve fast for quick results, with crystal clarity restoration in as little as 24 hours. That turnaround speed keeps service contracts on schedule.

Frequently Asked Questions

How does HTH Super Shock compare to liquid chlorine for shock treatments?

HTH Super Shock contains 5x stronger chlorine concentration compared to standard liquid chlorine shock treatments. The granular format stores more efficiently and doesn’t degrade as quickly as liquid chlorine in storage.

Can this product be used with salt water pool systems?

Yes, it’s compatible with salt water pools. The calcium hypochlorite formula works effectively in both traditional chlorine and salt water systems.

What surfaces is HTH Super Shock safe for?

Safe for all pool surfaces, including vinyl and fiberglass. The product is also safe for concrete and plaster pools. When used as directed, it won’t fade vinyl liners.

What’s the main advantage of a no-CYA formula?

It does not over-stabilize pool water and prevents chlorine lock. This means chlorine remains effective without the need to partially drain and refill pools to reduce CYA levels.

How quickly does HTH Super Shock work?

Restores crystal clarity in as little as 24 hours. Wait for at least 24 hours before re-entering the pool.