GLB Supersonic 73% Cal Hypo Granular Chlorine Shock, 1 lb bag

SuperSonic sanitizes, clarifies, fights algae and won’t over stabilize pool water. It’s safe for use on all pool surfaces and leaves no residue. 

• Contains 73% available chlorine.
• Add 1 lb. per 10,000 gallons directly to the pool.
• For best results, add during the evening hours.
• Compatible with chlorine and salt water chlorine sanitizing systems.

Available in three sizes: 1 lb bag

Directions for Use

It is a violation of Federal law to use this product in a manner inconsistent with its labeling.

Read all precautionary statements before use.

How to Use

Add the recommended dosage of this product during evening hours while the filter pump is running. When adding this product to your pool, broadcast the product evenly over a wide area in the deepest part of the pool. Use a clean, dry scoop to measure this product. Do not use the scoop for any other purpose. If any granules settle to the bottom of the pool, use brush to disperse.

Water Balance

For best product performance, swimmer comfort, and crystal clear water: Maintain pH in the range of 7.2 to 7.6. Maintain total alkalinity in the range of 60 to 120 parts per million (ppm). Maintain calcium hardness above 200 ppm. Use a test kit that measures all these ranges. Follow label directions for each product. Re-entry into treated pools is prohibited above 4 ppm due to risk of bodily harm.

Opening Your Pool

For best results, see the Water Balance section on this package before treatment. Always adjust and maintain pH in the 7.2 to 7.6 range. Follow "Shock Treatment/Superchlorination" directions on this package. Allow 30 minutes for product to disperse. Test free available chlorine residual with a pool test kit. Repeat treatment as needed.

Shock Treatment / Superchlorination

For best results, see "Water Balance" and "How to Use" sections above before treatment. Every 7 days, or as necessary to prevent pool problems, shock treat/superchlorinate the pool by adding 9–18 ounces of this product per 10,000 gallons of water to provide 5 to 10 ppm available chlorine. Additional shock treatments may be required to correct problems which are caused by visible algae, high bathing loads, heavy wind and rainstorms. Additional shock treatments may also be required to correct problems such as unpleasant odors and eye irritation. Check the available chlorine with a suitable test kit.

Algae Control

Follow "Shock Treatment/Superchlorination" directions on this label. Add this product as close as possible to any algae on the sides or bottom of the pool. If necessary, repeat the treatment. To prevent possible staining or bleaching, take the following steps immediately after treatment: Thoroughly clean pool by brushing surface of algae growth, vacuum and cycle through filter.

For preventative algae control, use your preferred algaecide product regularly. Follow label directions on the algaecide.

Winterizing

For best results, see "Water Balance" section above before treatment. Gradually add 27 ounces of this product per 10,000 gallons of pool water that is clear and clean. This provides 15 ppm free available chlorine. Follow "How to Use" directions on this package. Run the filter until granules are completely dissolved. Cover the pool with a pool cover. Prepare the heater, pump and filter components for winterizing by following manufacturer's directions.

Storage & Disposal

Keep this product dry in its tightly closed container when not in use. Store in a cool, dry, well-ventilated area. Keep away from heat or open flame. Nonrefillable container. Do not reuse or refill this container. Rinse empty container thoroughly with water to dissolve all material prior to disposal. Offer for recycling if available. Do not contaminate food or feed by storage or disposal or cleaning of equipment. For disposal of a contaminated or decomposing product, see "Emergency Handling."

Emergency Handling

In case of contamination or decomposition — Do not reseal container. Immediately remove container to an open and well-ventilated outdoor area by itself. Flood with large amounts of water. Dispose of the container and any remaining contaminated material in an approved landfill area.

Precautionary Statements — Hazards to Humans and Domestic Animals

Danger: Highly corrosive. Causes irreversible eye damage and skin burns. May be fatal if swallowed. Irritating to nose and throat.

• Open in a well-ventilated area. Avoid breathing dust and fumes.
• Do not get in eyes, on skin or on clothing. Do not handle with bare hands. Wear goggles or face shield and use rubber gloves when handling. For additional protection of skin, wear long sleeves and long pants.
• Remove and wash contaminated clothing before reuse. Only use utensils that are thoroughly clean and dry. Irritating to nose and throat. Avoid breathing dust and fumes.
• Wash thoroughly with soap and water after handling and before eating, drinking, chewing gum, using tobacco or going to restroom.

Physical and Chemical Hazards

If product is exposed to small amounts of water, it can react violently to produce heat and toxic gases and spatter. Do not add water to this product. Add only into water.

• Do not allow to become wet or damp before use.
• Can react with other materials, including other water treatment products, to cause intense fire, explosion, and the release of toxic gases.
• Keep all foreign matter, including other water treatment products, away from this product.
• Use only clean dry equipment to dispense this product.
• Do not use this product in a container or dispensing device that has been used with any other product.

Exposure to heat can cause this product to rapidly decompose, leading to intense fire, explosion, and the release of toxic gases. Store in a cool, dry, well-ventilated area. This product can increase fire intensity. Keep away from heat and from flame and burning material (like a lighted cigarette).

Environmental Hazards

This pesticide is toxic to fish and aquatic organisms.