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Brand: PTL Direct

Shock 70 (450g pouch) is a fast-acting, powerful pool shock treatment containing 70% available chlorine to produce crystal clear water and control bacteria and algae in swimming pools. Ideal for both above ground and inground pools, this high-strength granular formula quickly restores sanitizer levels and eliminates contaminants.

Perfect for routine maintenance, weekly superchlorination, or treating visible algae, Max Shock 70 delivers professional-level results in a convenient 450g pouch.

Water Balance Guidelines

For best performance, maintain:

  • Free Available Chlorine: 1.0 – 3.0 ppm

  • pH: 7.2 – 7.8

  • Total Alkalinity: 80 – 120 ppm

  • Calcium Hardness: 200 – 300 ppm

Always add product while the filter is running and broadcast evenly over the deepest area of the pool.

Standard Dosage Rates

  • Daily Maintenance: 30g per 10,000L

  • Weekly Superchlorination: 150g per 10,000L

  • Visible Algae: 350g per 10,000L

  • Heavy Algae: Up to 500g per 10,000L

Superchlorinate at dusk for best results.

Dosage Guide by Pool Size

Above Ground Pools

Pool Size Approx. Litres Weekly Shock (150g per 10,000L) Visible Algae (350g per 10,000L)
12 ft Round ~30,000 L 450 g - 1 pouch 1.05 kg
15 ft Round ~40,000 L 600 g 1.4 kg
18 ft Round ~55,000 L 825 g 1.9 kg
21 ft Round ~75,000 L 1.1 kg 2.6 kg
24 ft Round ~95,000 L 1.4 kg- 3 pouch 3.3 kg
27 ft Round ~115,000 L 1.7 kg 4.0 kg
30 ft Round ~135,000 L 2.0 kg 4.7 kg

Inground Pools

Pool Size Approx. Litres Weekly Shock (150g per 10,000L) Visible Algae (350g per 10,000L)
12 x 24 ft ~50,000 L 750 g 1.75 kg
14 x 28 ft ~70,000 L 1.05 kg 2.45 kg
16 x 32 ft ~85,000 L 1.3 kg - 3 pouch 3.0 kg
18 x 36 ft ~110,000 L 1.65 kg 3.85 kg
20 x 40 ft ~140,000 L 2.1 kg 4.9 kg

Heavy algae growth may require up to 500g per 10,000L. Vacuum pool after dead algae settles.

Oval Pool Size Approx. Litres Weekly Shock (150g/10,000L) Visible Algae (350g/10,000L)
12 x 18 ft ~35,000 L 525 g 1.2 kg
12 x 24 ft ~45,000 L 675 g 1.6 kg
15 x 24 ft ~55,000 L 825 g 1.9 kg
15 x 30 ft ~70,000 L 1.05 kg 2.45 kg
16 x 32 ft ~85,000 L 1.3 kg- 3 pouch 3.0 kg
18 x 33 ft ~100,000 L 1.5 kg 3.5 kg

Important Application Notes

  • Water should be above 20°C for optimal dissolution.

  • In cold water, pre-dissolve in a plastic pail (maximum 1 kg per 10L of water).

  • Always add chemical to water — NEVER water to chemical.

  • Hot weather, heavy use, and rain may require higher dosages.

  • Use stabilizer (cyanuric acid) in outdoor pools to protect chlorine from UV degradation.

Why Choose Wave Shock 70?

✔ 70% available chlorine for powerful performance
✔ Fast-acting algae and bacteria control
✔ Ideal for above ground and inground pools
✔ Perfect for weekly superchlorination
✔ Convenient 450g pouch

For reliable, high-strength pool shock that delivers sparkling clear water, Max Shock 70 is the professional choice for effective superchlorination and algae control.

Shock 70 – 450g Pool Shock Treatment | 70% Available Chlorine Fast-Acting Superchlorinator

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