• pool chlorine tablets
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POOLWORLD 3“ Chlorine Tabs for Pool 50 Pound

POOLWORLD 3“ Chlorine Tabs for Pool 50 Pound

$119.99
$159.99 $119.99
$50.42 50lb
Sale Sold out
  • Free Delivery
  • 30-day Returns
  • Purchase Protection
  • 1-year Warranty

INDIVIDUALLY WARPPED——In easy-open, tablets packaged in plastic tubes that hold 5 tablets each, which is very convenient for dispensing. Reduce the chance of shipping damage.Reduce the strong impact of chlorine gas on the eyes and nose when opening the package.

LONG-LASTING——Each 3 inch chlorine tab is pre-stabilized against the sun's light rays to prevent premature chlorine burn-off, making them last longer over 7 day.

SAVE MONEY——Compared to other brands, the Pool World brand provides more available chlorine in each tab at a much lower cost. These TARRY chlorine Tablets are slow dissolving, 90% available chlorine, 99% Trichlor.

COMPATIBILITY: Vinyl-lined pools and saltwater systems. Mild formula to reduce corrosion on pool accessories.

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Why Pool Owners Choose Us

  • Shipping Speed

    Delivered within 2–5 business days, Ships from California warehouse or New Jersey warehouse

  • Secure Chemical Packaging

    Designed to reduce dust, leakage, and tablet breakage.

  • Pool Care Support

    Helpful dosage guides and water maintenance information.

  • Reliable Chlorinationa

    Consistent free chlorine levels for routine pool maintenance.

  • Clear Delivery Expectations

    Orders typically ship within 1 business day. Tracking information will be sent to you via email after shipment

  • Responsive Customer Service

    Support available for shipping and pool care questions.

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Why Pool Owners Choose Our Tablets

  • UV-PROTECTED STABILIZED

    Protected from sunlight degradation for longer-lasting sanitation.

  • LOW RESIDUE FORMULA

    Helps reduce cloudy water, prevent chlorinator buildup, eliminate floating residue, and reduce filter clogging. Cleaner Water • Less Residue

  • CONSISTENT CHLORINATION

    Slow-dissolving tablets help maintain stable free chlorine levels.

  • INDIVIDUALLY WRAPPED TABLETS

    Individually protected tablets help reduce dust, broken pieces, and handling mess.

    No more granular or powdered chlorine tablets

Product Specifications

ACTIVE INGREDIENT Trichloroisocyanuric Acid 99%,
Available Chlorine 90%
PACKAGING & PRODUCT INFO 3-inch tablets, 5 per plastic tube (Break-Resistant Packaging)
WITH/WITHOUT STABILIZER Formulated with CYA (Cyanuric Acid) Stabilizer to prevent chlorine loss under sunlight.
LONG-LASTING DURATION 5-7 days in summer, 7-9 days in winter
IDEAL FOR Swimming Pools, Spas, Hot Tubs, Courtyard Ponds
Recommended Weekly Dosage Use 1 chlorine tablet per 5,000 gallons of pool water per week.
10,000 Gal 2 Tablets / Week
20,000 Gal 4 Tablets / Week
30,000 Gal 6 Tablets / Week
40,000 Gal 8 Tablets / Week

Pool Knowledge

We understand the needs of users and can do more for you

How long does one chlorine tablet last?

A typical 3-inch chlorine tablet lasts about 6–8 days depending on pool size, water temperature, sunlight exposure, and chlorine demand.

Will chlorine tablets increase cyanuric acid (CYA) levels?

Yes. Stabilized trichlor tablets contain cyanuric acid (CYA), which helps protect chlorine from sunlight but may increase CYA levels over time.

Regular water testing is recommended.

Why is my pool still cloudy after using chlorine tablets?

Cloudy water may be caused by improper water balance, high calcium levels, poor filtration, or insufficient chlorine levels.

Regular shocking and filter cleaning may be required.

Can chlorine tablets be used in saltwater pools?

Yes. Chlorine tablets can be used in saltwater pools for supplemental chlorination when additional sanitizer support is needed.

Why are my chlorine tablets dissolving too fast?

High water temperature, strong water flow, and direct sunlight can accelerate tablet dissolution.

Using an adjustable chlorinator may help control chlorine release.

Why is there residue or buildup in my chlorinator?

Low-quality tablets may leave excess residue or undissolved materials that contribute to feeder buildup.

Routine cleaning and proper water circulation are recommended.

How often should I add chlorine tablets?

Most pools require weekly tablet replacement depending on pool size, swimmer load, and weather conditions.

Maintain free chlorine levels between 1–4 ppm.

What are 3-inch chlorine tablets used for?

3-inch chlorine tablets are used for routine swimming pool chlorination and sanitizer maintenance. They help control bacteria, algae, and organic contaminants while maintaining consistent free chlorine levels.

How many chlorine tablets do I need for my pool?

A common starting dosage is 1 chlorine tablet per 5,000 gallons of pool water every 5–7 days. Actual chlorine demand may vary depending on pool usage, temperature, and sunlight exposure.

Why is my chlorine level still low?

Low chlorine levels may result from high chlorine demand, excessive sunlight exposure, high organic contamination, or elevated cyanuric acid (CYA) levels.

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Get answers to the questions that matter most.

FAQ

The item price is so low, is this a scam?

To be honest, we have credit card payment protection. If you find any false shipments or other fraudulent activities on our part, you can appeal to the credit card center for a refund.

It is possible that we cannot update the express delivery information in time. In this case, please wait and it will be updated within 48 hours.

Where do you ship from?

All orders are shipped from our warehouses located in California. Our warehouse is equipped with an efficient logistics system to ensure that your orders are processed and transported quickly and accurately.

The chlorine tablets you sell have received very few reviews. I would like to know their effectiveness?

Although we haven't accumulated many reviews for our product, we have been using this chlorine tablet consistently and have released over 90% chlorine during use, without any incidents of the swimming pool turning green.

How is the packaging of chlorine tablets and will they break when delivered?

We use plastic hoses for packaging, usually 5 pieces per hose. Despite various unavoidable factors during transportation, the occurrence of rupture is usually very rare.

What will I do if it is not delivered within 15 days?

Please send us an email to service@upoolworld.com. We will provide you with a replacement or other after-sales solution.