HTH 3" Chlorine Tablets Advanced — 5 lb Container, Stabilized Slow‑Dissolve, Individually Wrapped

HTH 3" Chlorine Tabs Advanced are individually wrapped, slow-dissolving tablets that sanitize, clarify, and help prevent algae to keep pool water clean and swim-ready.

These 3-inch chlorine tablets come in a 5 lb container and combine three pool-care actions in one convenient, individually wrapped tablet: a sanitizer to control bacteria, a clarifier to improve water clarity, and an algaecide to reduce algae growth. The advanced formula is stabilized against sunlight for extended chlorine life and designed to dissolve slowly—often lasting up to a week per tablet—making routine maintenance simpler for backyard pools, vinyl-lined pools, and saltwater systems alike.

How do these tablets simplify weekly pool maintenance?

One tablet provides multiple functions so you can reduce the number of separate chemicals stored and applied. Their slow-dissolve design trims how often you need to add sanitizer and helps maintain a steady chlorine level throughout the week.

• Use one tablet in a floater, feeder, or skimmer basket for continuous dosing.
• Individually wrapped tablets stay fresher and are easier to handle.
• Longer dissolving means fewer weekly additions and steadier chlorine levels.

Will these tablets work with my pool type and setup?

HTH 3" Chlorine Tabs Advanced are formulated to be compatible with most pool constructions and systems, including vinyl liners and saltwater chlorine generators. They are suitable for both manual and automated feeders, but always follow manufacturer guidance for your specific equipment.

• Safe for vinyl-lined pools when used as directed.
• Appropriate for saltwater systems that tolerate stabilized chlorine.
• Can be placed in a floating dispenser, inline feeder, or skimmer basket.

How should I monitor and balance water while using these tablets?

Regular testing keeps chlorine and other key levels in the target range to protect swimmers and equipment. HTH recommends checking water twice weekly and maintaining free chlorine around common target ranges to ensure effective sanitation without over-chlorinating.

• Test water at least twice weekly with HTH 6-Way Test Strips or a comparable test kit.
• Aim to keep free chlorine within the recommended range for your pool size and use.
• Adjust pH, alkalinity, and chlorine dosing based on test results to avoid imbalances.

How long does each tablet last and how do I place them?

These slow-dissolving tablets are stabilized against sunlight and typically dissolve over several days, sometimes up to one week depending on water temperature, circulation, and tablet placement. Choose a dispenser or feeder that provides steady contact with water for consistent dosing.

• Tablet life varies with water temperature and circulation—warmer water dissolves faster.
• Place tablets in a floater, automatic feeder, or skimmer basket, not directly in the pool unless approved.
• Store unopened tablets in a cool, dry place away from children and pets.

Who this is for: Homeowners and pool caregivers who want a straightforward, multi-action sanitizer that reduces the number of separate chemicals needed and lowers weekly maintenance time. It’s a good match for owners of vinyl-lined pools, inground and aboveground setups, and many saltwater systems who prefer the convenience of individually wrapped, slow-dissolving tablets. Pair with routine testing—such as HTH 6-Way Test Strips—to maintain balanced water and reliable sanitation throughout the swim season.