HTH™ Pool Care Phosphate Remover

Algae Prevention

Skip to product information

HTH™ Pool Care Phosphate Remover

Algae Prevention

HTH™ Pool Care Phosphate Remover eliminates phosphates that feed algae and reduce sanitizer effectiveness. It works quickly to help prevent cloudy or green water and keep chlorine or bromine working efficiently.

  • Weekly use: 2 fl oz per 10,000 gallons
  • Safe for all pool types, including vinyl-lined and saltwater systems
  • Drops phosphates for easy filter removal

**Note: Phosphate levels above 200–500 ppb can make algae harder to control.

Product Benefits

Stops Algae at the Source

Pool phosphate remover starves algae of food before blooms can start.


Boosts Sanitizer Performance

Removing phosphates in pool water helps chlorine and bromine work more efficiently.


All-Pool Compatibility

Effective in vinyl, plaster, fiberglass, and saltwater swimming pool systems.


Easy Weekly Dose

Add 2 fl oz per 10,000 gallons for routine maintenance and ongoing algae prevention.

How to Use

How to Use

Why You Should Use This Product: Phosphate Remover eliminates phosphates that feed algae, helping keep pool water clear and allowing chlorine and salt systems to work more efficiently. The fast‑acting, concentrated formula begins working immediately.

Before Use: Clean or backwash the filter. Test phosphate levels using an appropriate phosphate test kit.

Application Instructions

  1. Clean or backwash the filter before treatment.
  2. Test phosphate levels to determine the amount of product needed.
  3. With the pump running, slowly pour the recommended amount evenly into the pool over a wide area.
  4. Run the filter continuously for at least 24 hours.
  5. Backwash the filter after 24 hours.
  6. After 48 hours, retest phosphate levels. If levels are still above 125 ppb, repeat treatment.

Cloudiness may occur temporarily after treatment. To clear water more quickly, use a compatible pool clarifier.

Dosage Guide

Pool Capacity (Gallons) 125 ppb 250 ppb 500 ppb 1,000 ppb
5,000 1 fl oz 2 fl oz 4 fl oz 8 fl oz
10,000 2 fl oz 4 fl oz 8 fl oz 16 fl oz
15,000 3 fl oz 6 fl oz 12 fl oz 24 fl oz
20,000 4 fl oz 8 fl oz 16 fl oz 32 fl oz

Weekly Maintenance

Add 1 fl oz of this product per 5,000 gallons of pool water each week to maintain phosphate levels below 125 ppb.

Ingredients

Ingredients

Active Ingredient:

Contains lanthanum chloride.

Safety, Storage, and Disposal

Safety

Use this product only as directed. Avoid contact with eyes and skin.

Wear protective eyewear and gloves when handling.

Do not mix this product with other chemicals.

For complete safety information, warnings, and first aid instructions, refer to the product label.

First Aid

If product gets in eyes, rinse slowly and gently with water for 15–20 minutes and seek medical advice if irritation persists.

If on skin or clothing, remove contaminated clothing and rinse skin thoroughly with water.

If swallowed or inhaled, contact a poison control center or medical professional immediately.

Storage and Disposal

Keep product in its original, tightly closed container when not in use.

Store in a cool, dry place away from heat or open flame.

Use entire contents when possible. Dispose of empty container in accordance with state and local regulations.

Do not reuse empty container.

For full storage, disposal, and emergency handling instructions, refer to the product label.

Reviews

 

Quick Pool Tips

  • Always read product label directions prior to using and use only as directed

  • Always add chemicals to pool water, never the other way around

  • Never add chemicals to pool water when people are in the pool

  • Warning symbol with a triangle and exclamation mark on a blue background

    Never mix products together

  • Always store pool products in a cool, dry location and out of direct sunlight