
Poolife® MPT Extra™ 11lbs
Product Overview
What pool techs reach for when pools need consistent sanitization, algae prevention, and water clarification in a single tablet.
In our experience, the Poolife® MPT Extra™ 11lbs container (labeled at 11 LB net weight) reliably handles routine sanitation while preventing algae with an active formula of Trichloro-s-Triazinetrione: 93.5%, Copper sulfate pentahydrate: 1.5%. Each slow-dissolving tablet includes built-in stabilizer to protect chlorine from rapid UV degradation, alongside water-softening and clarifying agents. While this 11 lbs size fits standard residential schedules, Poolife also offers 4 lbs and 21 lbs sizes.
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Benefits & What Makes It Different
All-in-One Dual Active Chemistry
Contains Trichloro-s-Triazinetrione: 93.5%, Copper sulfate pentahydrate: 1.5% to continuously sanitize, prevent algae, and clarify water in one step.
Built-In UV Protection
Formulated with integrated stabilizer to prevent chlorine loss under intense sunlight and maintain free chlorine between 1–3 ppm.
Scale and Mineral Defense
Proprietary additives soften water feel and inhibit staining and mineral scaling across skimmers, floaters, and automatic chlorinators.
Product Details
Trichloro-s-Triazinetrione: 93.5%, Copper sulfate pentahydrate: 1.5%
1 tablet per 10,000 gallons every 7 days (or as needed to maintain 1–3 ppm free chlorine).
Compatibility
- Compatible with skimmers, chemical floaters, and inline/offline erosion feeders
- DANGER: Never mix directly with calcium hypochlorite, dry acid, or other pool chemicals
- Ensure pH is 7.2–7.6 and free chlorine is 1–3 ppm before allowing swimmers in the water
When To Use This
Pro Tip
In hotter climates where chlorine burns off faster, maintain cyanuric acid at 30–50 ppm and test water quarterly for copper residual to keep your mineral levels balanced.
Common Questions & Instructions
What is the recommended dosing for Poolife MPT Extra tablets?
The standard specification is 1 tablet (approx. 8 oz) per 10,000 gallons of pool water every 7 days to maintain free chlorine within the ideal 1–3 ppm range.
Does Poolife MPT Extra add stabilizer to pool water?
Yes, these trichlor-based tablets deliver cyanuric acid stabilizer to prevent UV burn-off. Maintain overall cyanuric acid levels between 30–50 ppm for optimal sanitizing efficiency.
Can I use Poolife MPT Extra tablets in an automatic chlorinator?
Yes, these slow-dissolving 3-inch tablets are compatible with automatic feeders, skimmers, and floaters. Never mix them with calcium hypochlorite tablets or non-trichlor sanitizers.
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.



