Description
Poolife™ NST™ Prime Cal Hypo Tablets, 20.2 lb - Free Shipping
Poolife™ NST™ Prime Cal Hypo Tablets are slow-dissolving pool chlorine tablets designed to sanitize swimming pool water without adding cyanuric acid, also known as CYA. This makes them a strong choice for pool owners who want reliable chlorine performance while helping avoid the over-stabilization problems that can occur when CYA levels get too high.
The 20.2 lb size is a convenient larger container for routine pool maintenance through the swim season. These extended-release Cal Hypo tablets help maintain clean, clear, swim-ready water and are designed for use in compatible skimmers, Poolife™ NST™ Feeders, or Poolife™ NST™ Floaters.
Slow-Dissolving Chlorine Tablets Without Added CYA
Poolife™ NST™ Prime is designed for pool owners who want effective chlorine sanitizing without adding more stabilizer to the water. Unlike traditional stabilized chlorine tablets, these Cal Hypo tablets do not contribute additional CYA, which helps pool owners maintain better control over water balance.
This is especially helpful for pools that already have elevated cyanuric acid levels or for homeowners who want to manage stabilizer separately. By helping reduce the risk of chlorine lock, Poolife™ NST™ Prime supports more consistent chlorine effectiveness when used as directed.
Extended-Release Cal Hypo for Consistent Pool Sanitizing
These slow-dissolving tablets are made to release chlorine over time, providing lasting sanitizer coverage for everyday pool care. The extended-release format helps reduce frequent handling while supporting steady chlorine maintenance between water tests.
Poolife™ NST™ Prime is a practical sanitizer for weekly pool maintenance, especially when paired with proper filtration, water circulation, routine testing, and balanced pool chemistry.
Larger 20.2 lb Size for Seasonal Pool Maintenance
The 20.2 lb container offers a larger supply than smaller household sizes, making it a good fit for pool owners who want to stock up for regular use. It is especially useful during peak swim season when chlorine demand can increase due to sunlight, heat, rain, and heavier swimmer use.
This size is ideal for homeowners who already use the Poolife™ NST™ system or who prefer a CYA-free Cal Hypo tablet option for ongoing chlorine maintenance.
Designed for Compatible Skimmers, NST Feeders, and NST Floaters
Poolife™ NST™ Prime Tablets should be used only with compatible equipment. These tablets are designed for use in a clean skimmer basket, Poolife™ NST™ Feeder, Poolife™ NST™ Floater, or a delivery system specifically designed for Cal Hypo tablets.
Do not place these tablets in a feeder or floater that has been used with trichlor, dichlor, bromine, or other incompatible pool chemicals unless the equipment is specifically approved and properly cleaned according to manufacturer instructions.
Product Details
How to Use
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Test pool water first: Check free chlorine, pH, total alkalinity, calcium hardness, and CYA before adding tablets.
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Use compatible equipment only: Place tablets in a clean skimmer basket, Poolife™ NST™ Feeder, Poolife™ NST™ Floater, or Cal Hypo-compatible delivery system.
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Adjust based on demand: Add tablets as needed to maintain proper chlorine levels based on pool size, swimmer load, heat, rainfall, and sunlight exposure.
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Maintain free chlorine: Keep free chlorine within the recommended 1 to 4 ppm range.
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Monitor water balance: Since Cal Hypo can affect calcium hardness, test regularly and adjust pool chemistry as needed.
Important Safety and Compatibility Notes
Poolife™ NST™ Prime Tablets are Cal Hypo tablets and must not be mixed with trichlor, dichlor, bromine, shock, or any other pool chemical. Do not add them to a feeder, floater, skimmer, or chlorinator that contains residue from another sanitizer or chemical product.
Use only clean, compatible equipment designed for Cal Hypo tablets. Store the container in a cool, dry, well-ventilated area away from sunlight, moisture, and incompatible materials. Always follow the product label for dosing, handling, storage, and swimming reentry instructions.
Why Choose Poolife™ NST™ Prime 20.2 lb?
Poolife™ NST™ Prime 20.2 lb is a strong option for pool owners who want a larger container of slow-dissolving chlorine tablets without adding CYA to the water. It provides the convenience of tablet chlorination while helping maintain better control over stabilizer levels.
For pools that need dependable sanitizer performance without additional cyanuric acid buildup, NST™ Prime offers a practical Cal Hypo alternative to traditional stabilized chlorine tablets.
Frequently Asked Questions
What does Poolife™ NST™ Prime do?
Poolife™ NST™ Prime sanitizes swimming pool water with slow-dissolving Cal Hypo tablets. It helps maintain a free chlorine residual and supports clear, swim-ready water.
Does Poolife™ NST™ Prime add CYA?
No. Poolife™ NST™ Prime is designed to sanitize without adding cyanuric acid, making it useful for pool owners who want to avoid increasing CYA levels.
Can I use these tablets in a regular trichlor feeder?
No. These tablets should only be used in a skimmer, Poolife™ NST™ Feeder, Poolife™ NST™ Floater, or equipment specifically designed for Cal Hypo tablets. Do not use them in feeders that contain or previously contained incompatible chemicals unless the equipment is approved and properly cleaned.
Can these tablets be used with saltwater pools?
Yes, they can be used as supplemental chlorine in salt chlorine generator pools when used as directed. Always test water regularly and maintain proper balance.
What is the target chlorine level?
Maintain free chlorine in the recommended 1 to 4 ppm range, or as directed by the product label and local pool-care requirements.


