Natural Chemistry Spa Granular Chlorine Concentrate 2 lb white bottle with label showing a woman relaxing in a spa pool and product usage details

Natural Chemistry Spa Granular Chlorine Concentrate, 2 lb Bottle | 14221NCM

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About This Item

Natural Chemistry Spa Chlorine Concentrate - 2 lb Bottle

Quick and easy to use! No need for any dispensers or floaters

Sodium Dichlor sanitizer for control of bacteria in spa water

Features and Benefits:

  • Specifically designed for spas and hot tubs
  • Concentrated formula
  • Controls bacteria and algae in spa water

INSTRUCTIONS

Directions for use:

It is a violation of Federal Law to use this product in a manner inconsistent with its labeling. Read entire label and use strictly in accordance with precautionary statements and directions.

FOR SPA AND HOT TUB DISINFECTANT:

When used as directed, this product is effective as a spa and hot tub water disinfecting agent.

Ensure all spa and hot tub equipment is working properly. Backwash/clean the filter system following manufacturer's directions. Adjust pH to between 7.2-7.6. When using other products as outlined in the directions for this product, always follow directions on those products.

Maintenance Dose: With pump on, add 1/2 teaspoon of this product per 100 gallons of water (or 5 teaspoons per 1,000 gallons) as an initial treatment. Repeat at 15 to 20 minute intervals until a residual of 3-5 ppm of available chlorine is established as determined by test kit. A test kit must be used regularly to determine the frequency of additional doses of this product needed to maintain the chlorine residual of 3-5 ppm.

Superchlorination: Use one teaspoon of this product per 100 gallons of water (or 1/4 cup per 1,000 gallons). Superchlorination may be needed on a nightly basis in a heavily used spa or as infrequently as once a week in a moderately used spa.

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Natural Chemistry Pool and Spa Water Care

About Natural Chemistry Pool and Spa Water Care

Founded in 1989, Natural Chemistry shifted the paradigm of pool care by asking a simple question: "Is there a better, more natural way?" While the rest of the industry relied heavily on harsh industrial chemicals, Natural Chemistry pioneered the use of powerful, naturally based enzymes—similar to those found in your own body—to break down organic waste.

What started as a single enzyme formula to combat scum lines has grown into North America’s leading authority on specialty pool water care. Their philosophy is built on "biomimicry"—using technologies inspired by nature to solve common pool problems like algae fuel (phosphates) and greasy buildup. By breaking down contaminants rather than just masking them, their products often reduce the need for excessive sanitizers and scrubbing. For the DIY homeowner, Natural Chemistry represents the "work smarter, not harder" approach to maintenance, delivering high-end results with eco-conscious science.

Why We Trust Natural Chemistry Pool and Spa Water Care
Pioneering Enzyme Technology: They were the first to successfully stabilize natural enzymes for pool use, allowing water to "digest" oils, lotions, and pollen naturally.

Problem-Solving Focus: Rather than generic fixes, they manufacture targeted solutions for specific headaches, such as high phosphates (Phosfree) or persistent scum lines.

Efficiency & Simplicity: Their core promise is to reduce maintenance time and effort, polishing water so it sparkles without constant manual labor.

Eco-Conscious Chemistry: By removing organic load efficiently, their products often help sanitizers work more effectively, potentially lowering the total chemical burden in the pool.

More about Chlorine Products for Pool Water Care

Complete Your Pool Care Routine

Essential Pairing
Pool Water Balancers for Proper Chemical Balance

Chlorine is significantly less effective if pH is above 7.6. You must balance the water first.

Shop Pool Water Balancers for Proper Chemical Balance
Highly Recommended
Pool Water Testing Supplies

You cannot manage what you do not measure. Weekly testing ensures your Free Chlorine is adequate.

Shop Pool Water Testing Supplies
Pro Tip: Don't Forget
Pool Shock Treatments for Water Clarity

Shocking is required to oxidize waste and "recharge" your daily chlorine to keep it working efficiently.

Shop Pool Shock Treatments for Water Clarity

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