Poolife® NST® Prime Tablets 9 lbs
Product Overview
A proven choice for continuous chlorination without adding cyanuric acid or creating stabilizer buildup.
For homeowners running pools with high CYA levels, Poolife NST Prime Tablets deliver Calcium Hypochlorite (59.5%) sanitization without adding cyanuric acid or unwanted stabilizer. Packaged in a 9.5 LBS bucket (commonly listed as 9 lbs, with line options in 4.5 lbs, 20.2 lbs, and 39.4 lbs), these slow-dissolving octagon tablets are engineered specifically for skimmer application to maintain 1–3 ppm free chlorine.
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Benefits & What Makes It Different
Non-Stabilized Cal Hypo Formula
Contains 59.5% Calcium Hypochlorite to sanitize pool water without elevating cyanuric acid or stabilizer levels over time.
Extended-Release Octagon Design
Specially formulated octagon shape provides controlled, slow erosion in your skimmer basket over several days.
Prevents Chlorine Lock
Keeps water sanitized while allowing you to keep cyanuric acid in the ideal 30–50 ppm range without draining water.
Product Details
Calcium Hypochlorite (59.5%)
1 tablet per 10,000 gallons weekly in the skimmer basket
Compatibility
- Compatible with salt chlorine generators, ozone systems, and mineral purifiers.
- DANGER: NEVER mix with organic chlorine (trichlor/dichlor). Do not place in standard trichlor feeders or floaters due to explosion hazards.
When To Use This
Pro Tip
In hard water areas with high calcium hardness (above 400 ppm), monitor your calcium levels monthly since Calcium Hypochlorite adds small amounts of calcium with every dose; maintain pH strictly at 7.2–7.6 to prevent scaling.
Common Questions & Instructions
How do I dose Poolife NST Prime Tablets in my pool?
The manufacturer label specifies 1 TABLET PER 10,000 GALLONS of pool water placed into the skimmer basket with the pump running, maintaining a free chlorine level of 1–3 ppm.
Can I put Poolife NST Prime Tablets in my existing automatic trichlor feeder?
No. Never mix Calcium Hypochlorite with trichlor or place these tablets in a chlorinator or floater that has ever contained trichlor, as mixing them creates a severe fire and explosion hazard. Use in clean skimmer baskets or dedicated cal-hypo feeders only.
What sizes do Poolife NST Prime Tablets come in?
They are available in 4.5 lbs, 9 lbs (labeled net weight 9.5 LBS), 20.2 lbs, and 39.4 lbs pails to match various pool sizes and maintenance schedules.
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.
