
Poolife® 3" Cleaning Tablets
Product Overview
A proven choice for maintaining consistent sanitization levels in residential pools without the need for daily dosing.
Poolife® 3" Cleaning Tablets contain 99% Trichloro-s-Triazinetrione, providing a high concentration of available chlorine for effective bacteria and algae control. These slow-dissolving tablets are available in 4.81 lbs, 25 lbs, and 50 lbs containers, making them a reliable choice for consistent water quality and an effective way to live your best pool life. In our experience, these tablets are the standard specification for homeowners running automatic feeders or skimmers who need a stabilized chlorine source that resists UV degradation.
Benefits & What Makes It Different
99% Trichloro-s-Triazinetrione
This high-concentration formula ensures maximum sanitizing power per tablet, effectively killing bacteria and controlling algae growth.
Built-in Stabilization
Because these tablets are stabilized, they protect your chlorine from being destroyed by the sun's UV rays, which is essential for outdoor pools.
Extended Release Design
Each 3-inch tablet is engineered to dissolve slowly over 7 days, providing a steady stream of sanitizer to eliminate organic contaminants and debris.
Product Details
Trichloro-s-Triazinetrione 99%
1 tablet per 10,000 gallons of pool water per week.
Compatibility
- Do not mix with Calcium Hypochlorite or any other chemicals
- Compatible with skimmers, floaters, and automatic feeders
- Wait until chlorine levels drop below 4 ppm before swimming
When To Use This
Pro Tip
In hot climates like the Sun Belt, chlorine burns off much faster; while these tablets provide up to 7 days of sanitization, we recommend checking your levels twice a week during peak summer to ensure your residual stays above 1 ppm.
Common Questions & Instructions
How many Poolife 3" tablets do I need for a 20,000-gallon pool?
For a 20,000-gallon pool, you typically need to add 2 tablets to your feeder or skimmer every week to maintain a chlorine residual of 1-4 ppm, though heavy bather loads or high heat may require more frequent additions.
Will these chlorine tablets raise my Cyanuric Acid (CYA) levels?
Yes, since these are Trichloro-s-Triazinetrione tablets, they contain stabilizer; while this protects chlorine from the sun, you should monitor CYA levels monthly to ensure they stay within the recommended 30-50 ppm range.
Can I mix these tablets with other types of pool shock?
Never mix these tablets directly with Calcium Hypochlorite (Cal-Hypo) or other pool chemicals, as doing so can cause a dangerous chemical reaction or explosion; always add chemicals separately to the pool water and follow all label safety warnings.
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.



