
Poolife® 3" Cleaning Tablets 50lbs
Product Overview
A proven choice for steady, low-maintenance sanitization, these slow-dissolving tablets keep residential pools clear with minimal weekly effort.
At 99% Trichloro-s-Triazinetrione, Poolife® 3" Cleaning Tablets deliver a highly concentrated 90% available chlorine to reliably handle daily sanitizing demands. In our experience, this 50 LB (50lbs) bucket is what pool techs reach for when setting up automatic feeders, floaters, or skimmers for consistent water quality. These stabilized tablets protect your chlorine from UV degradation while helping you manage organic contaminants and debris—making them a reliable choice for consistent water quality and making them a trusted brand for residential pool care. These tablets offer an effective way to live your best pool life by keeping maintenance simple. Also available in 4.81 lbs, 25 lbs, and 50 lbs sizes to suit any pool volume.
Customer Reviews
No reviews yet — bought this one? You'd be first.
Benefits & What Makes It Different
99% Trichloro-s-Triazinetrione
With 90% available chlorine, these highly concentrated tablets dissolve slowly to provide up to 7 days of continuous sanitization.
Built-In UV Stabilization
Contains cyanuric acid to protect active chlorine from sunlight degradation, reducing overall chemical consumption in hot climates.
Multi-Feeder Compatibility
Formulated for safe, uniform erosion in floating chlorinators, skimmer baskets, and automatic chemical feeders.
Product Details
Trichloro-s-Triazinetrione (99%)
1 to 2 tablets per 10,000 gallons weekly to maintain 1–3 ppm free chlorine.
Compatibility
- Do not mix with Calcium Hypochlorite or any other pool chemicals; doing so may cause fire, explosion, or toxic gas release.
- Compatible with all pool finishes including plaster, vinyl, and fiberglass when used in a proper dispensing device.
- Do not add tablets directly to the pool floor, as this can bleach or damage vinyl liners and plaster finishes.
When To Use This
Pro Tip
In hot southern climates, high UV exposure burns chlorine faster, but it also causes CYA to build up quickly if you rely solely on tabs. For optimal water balance, always maintain your pool within these ideal ranges: free chlorine 1–3 ppm, pH 7.2–7.6, total alkalinity 80–120 ppm, calcium hardness 200–400 ppm, cyanuric acid 30–50 ppm, salt 2700–3400 ppm. We recommend using these 3-inch tablets for baseline chlorination, but occasionally switching to a non-stabilized shock like Cal-Hypo to keep your cyanuric acid strictly within the ideal 30–50 ppm range.
Common Questions & Instructions
How many Poolife 3 inch chlorine tablets do I need for a 10,000 gallon pool?
The standard dosing is 1 to 2 tablets (approx. 7 to 14 oz) per 10,000 gallons of pool water weekly, or as needed to maintain a constant free chlorine residual of 1–3 ppm. Always test your water first to ensure pH is 7.2–7.6 and total alkalinity is 80–120 ppm.
Will Poolife 3 inch stabilized tablets raise my cyanuric acid (CYA) levels?
Yes, because these tablets are made of Trichloro-s-Triazinetrione, they introduce cyanuric acid into your water. We recommend keeping cyanuric acid levels between 30–50 ppm; if CYA exceeds this range, you may need to partially drain and refill your pool to prevent chlorine lock.
Can I mix Poolife 3 inch tablets with other types of chlorine in my feeder?
No. Mixing Trichloro-s-Triazinetrione with other chlorine types, particularly Calcium Hypochlorite, is highly dangerous and can cause a violent chemical reaction, fire, or explosion. Only use these tablets in a dedicated feeder or floater that has been thoroughly cleaned of other residues.
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.



