Shocks are an essential problem solver as well a great preventive medicine for your pool!

Shock at least once a week to maintain sparkling blue, crystal clear water. Use our premium shock products at least once a week to give your pool the boost of chlorine it needs, kill unwanted bacteria and algae, and keep your water as clean and clear as can be. 

Features & Benefits

• FAST-ACTING AND POWERFUL!
• 15% Stronger than regular HTH Shock!
• Contains 75% available chlorine.
• Fast dissolving, EXTRA FINE, formula is made from a patented process.
• Ideal for weekly shock treatments and killing algae.
• Calcium Hypochlorite
• Always test and ensure pH is between 7.2 and 7.6 before shocking
• Test chlorine levels regularly
• Shock after heavy use of pool and after rain as rain can introduce organic contaminants

Directions

Always adjust pH between 7.2 and 7.4 prior to using this product. Maintain recommended daily levels as determined by testing kit: free available chlorine 1.0 - 3.0 parts per million (ppm), pH 7.2-7.8, total alkalinity 80-120 ppm, and calcium hardness 200-300 ppm.

Superchlorination of stabilized pools: 

For pools stabilized with cyanic acid, periodic superchlorination is necessary to provide sufficient free available chlorine to control algae, destroy unfiltered organic contaminants, minimize odours and keep water sparkling clear. Superchlorinate by broadcasting over a large area of the pool surface, mainly in the deep end at the rate of 65 g/ 10,000 L. Superchlorinate every 14 days when the temperature of the water is below 27°C. Treatment every 7 days is recommended when the temperature is higher, bathing loads are heavy, pool water appears dull or hazy, unpleasant chlorine-like smell is present, excessive eye irritation occurs, or after heavy rains.

Pool should not be entered until the chlorine residual is 1.0 - 3.0 ppm.

Shock Treatment for Control Algae: 

If algae develops, resulting in a green colour and slimy feeling, shock treatment is necessary. Broadcast over a large area of the pool, mainly at the deep end, at a rate of 130 g/ 10,000 L. If the pool sides or bottom develop algar spots, direct as close to the algae as possible. NOTE: Prolonged contact with the pool surface may cause staining or bleaching. Immediately after treatment, thoroughly clean the pool by scrubbing surface of algae growth, vacuuming and cycling through the filter. If necessary, repeat the treatment.

Pool should not be entered until the chlorine residual is 1.0 - 3.0 ppm.

Start-up: 

For initial chlorination of pool water add 65 g/ 10,000 L. Allow five minutes for dispersion and then test the chlorine residual with pool test kit. If below 1.0 ppm repeat this dosage until 1.0 ppm is obtained.

Pool should not be entered until the chlorine residual is 1.0 - 3.0 ppm.

Winterizing: 

While the water is still clear and clean, prepare for long periods of disuse by gradually applying 390g/ 10,000 L. Run the filter until dispersion is complete. Cover the pool with a plastic pool cover and prepare the heater, pump and filter components for winter by following the manufacturer’s directions. When the pool cover is removed in the spring, follow the Start-up directions.

Storage and Disposal: 

Keep product dry in tightly closed container when not in use. Store in cool, dry well-ventilated area away from open heat or flame. Do not reuse the empty container. Rinse the empty container thoroughly with water to dissolve all material before discarding. For information on the disposal of unused, unwanted product, contact the manufacturer or provincial regulatory agency. Contact the manufacturer and the provincial regulatory agency in case of a spill and for clean-up of spills.

Warranty

HTH Chemicals come with a 30-Day Limited Manufacturers Warranty.

Documentation

SDS Sheet