REGAL 50 lb 3" Chlorinated Tablets
Product Overview
A proven choice for steady, continuous sanitization in residential automatic feeders and floaters.
At 90% available chlorine, REGAL 50 lb 3" Chlorinated Tablets are formulated with 99% Trichloro-s-triazinetrione (trichlor) to deliver slow-dissolving, long-lasting sanitizing power. Each individual 8 oz tablet includes built-in stabilizer (cyanuric acid) to protect your chlorine residual from UV degradation under intense sunlight. Packaged in a commercial-grade 50 LBS bucket, this formulation reliably handles day-to-day sanitization while keeping maintenance intervals predictable.
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Benefits & What Makes It Different
90% Available Chlorine
Formulated with 99% Trichloro-s-triazinetrione to deliver maximum sanitizing potency with controlled, uniform erosion.
Built-In Sunlight Stabilizer
Contains cyanuric acid stabilizer to prevent UV rays from burning off your free chlorine residual during peak daylight hours.
Dense 8 oz Slow-Dissolving Pucks
Compressed 3-inch 8 oz tablets erode evenly in inline chlorinators without crumbling or creating sudden chlorine spikes.
Product Details
Trichloro-s-triazinetrione 99%
1 to 2 tablets (8 oz each) per 10,000 gallons weekly to maintain 1–3 ppm free chlorine
Compatibility
- DANGER: Never mix with Calcium Hypochlorite, liquid bleach, or any other chemical in feeder or bucket (explosion hazard)
- Ideal water balance targets: pH 7.2–7.6, Total Alkalinity 80–120 ppm, Calcium Hardness 200–400 ppm, Cyanuric Acid 30–50 ppm
- Safe for swimming once free chlorine residual tests between 1–3 ppm
When To Use This
Pro Tip
In hot southern climates, chlorine burns off rapidly in the heat, but remember that trichlor pucks are acidic (pH ~2.8–3.0) and build stabilizer over time. Check your pH weekly to keep it within 7.2–7.6, maintain total alkalinity between 80–120 ppm, and never mix trichlor with cal-hypo shock in the same container or feeder due to severe chemical reaction hazards.
Common Questions & Instructions
How many 3-inch chlorinating tablets do I need per 10,000 gallons?
In our experience, standard maintenance requires 1 to 2 tablets (8 oz each) per 10,000 gallons of pool water every 7 days in an automatic chlorinator or floater to keep free chlorine in the ideal 1–3 ppm range.
Does using REGAL 50 lb trichlor tablets raise cyanuric acid levels?
Yes, trichlor tablets add cyanuric acid stabilizer alongside active sanitizer. For every 10 ppm of free chlorine added, cyanuric acid increases by roughly 6 ppm. Keep your target cyanuric acid level between 30–50 ppm by monitoring monthly.
Can I put these 3-inch chlorine pucks directly in the skimmer basket?
We do not recommend placing trichlor tablets in skimmer baskets. When the pump shuts off, highly acidic water concentrates in the skimmer well, which can deteriorate plastic baskets, plumbing lines, and pump seals over time. Use an automatic feeder or floating dispenser instead.
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.
