
REGAL 4 lb Pool Stabilizer Pouch
Product Overview
The standard specification pool techs reach for when chlorine is burning off too fast under direct sun.
At 100.0% active Cyanuric acid, this REGAL 4 lb Pool Stabilizer pouch provides pure, concentrated protection against UV degradation without adding unwanted calcium or altering total alkalinity. Packed in a convenient 4 LBS. pouch, it helps you reach and maintain the target cyanuric acid range of 30–50 ppm to stop rapid free chlorine loss in outdoor pools.
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Benefits & What Makes It Different
100.0% Cyanuric Acid
Delivers pure stabilizer without fillers, preventing chlorine destruction caused by UV sunlight exposure.
Convenient 4 lb Pouch
Pre-measured 4 LBS. sizing makes dosing straightforward for seasonal start-ups or periodic CYA top-offs.
Zero Impact on Hardness or pH
Dissolves cleanly to shield sanitizer levels without raising calcium hardness or significantly shifting water balance.
Product Details
Cyanuric acid (100.0%)
Approx. 13 oz per 10,000 gallons raises cyanuric acid by 10 ppm; one 4 lb pouch treats up to 10,000–15,000 gallons depending on baseline levels
Compatibility
- Safe for all pool surfaces including plaster, vinyl, fiberglass, and pebble finishes
- Compatible with standard chlorine, salt chlorine generators, and mineral systems
When To Use This
Pro Tip
Because Cyanuric acid dissolves slowly, place this 4 LBS. pouch of granular stabilizer inside a skimmer sock or mesh bag in your skimmer basket. This prevents undissolved granules from caking inside the filter tank while ensuring steady, even dissolution.
Common Questions & Instructions
How much REGAL Pool Stabilizer do I need to raise CYA levels?
Adding 13 oz of cyanuric acid per 10,000 gallons raises stabilizer by approximately 10 ppm. For a 10,000-gallon pool starting at 0 ppm, roughly 4 lb (or one 4 LBS. pouch) brings CYA up to around 40 to 50 ppm.
Where should I add this 4 lb pool stabilizer pouch in my pool?
Add slowly into the skimmer with the pump running continuously for 24 hours, or slurry it in a clean bucket of water and broadcast it around the perimeter. Do not backwash or clean your filter for at least 48 to 72 hours after skimmer addition.
Why is my pool burning through chlorine so quickly?
Without adequate cyanuric acid (target range 30–50 ppm), UV rays from sunlight can destroy up to 90% of free chlorine in as little as two hours, especially in hot southern climates.
Delivered today to your DFW neighborhood
Order this item by 2 PM Central on a weekday, and we'll have it on your driveway by evening. Same-day delivery is FREE to every ZIP in our DFW coverage area — no minimum — or it's free with our weekly service plan.



