Natural Chemistry Phosphate Remover for Pools, 3 L — lanthanum in-filter treatment reduces phosphates and clouding

Natural Chemistry Phosfree is a lanthanum-based liquid treatment that removes phosphates in your pool by coating filter media so phosphates bind and are filtered out.

Phosphates act as a food source for algae and can make pool care more difficult. Natural Chemistry Phosfree Phosphate Remover (3 L) uses patented lanthanum chemistry to capture and reduce phosphate levels inside your pool filter rather than clouding the pool water. By forming a thin reactive coating on filter media, Phosfree traps phosphate molecules as water passes through, lowering overall phosphate counts and making sanitizer and algaecide performance more reliable.

How quickly will Phosfree lower phosphate levels?

Phosfree works progressively as treated water cycles through the filter. You’ll typically see phosphate reductions within a few filter turnovers; the timing depends on your pool’s flow rate, filter type, and initial phosphate level. Regular testing after application confirms progress and helps determine if a follow-up dose is needed.

• Acts inside the filter—reduces clouding compared with some sequestering methods
• Visible reductions often after several hours of circulation and filtration
• Works with sand, cartridge, or DE filters when applied correctly

How do I apply Phosfree to my pool safely and effectively?

Application is simple: add the recommended dose to the skimmer while the pump is running so the product distributes and reaches the filter media. Follow label instructions for dose rate based on pool volume and measured phosphate level; retest and repeat if necessary. Avoid overdosing and store the product according to the manufacturer’s directions.

• Add to skimmer with pump running to coat filter media
• Follow dosage chart for pool size and phosphate concentration
• Retest phosphates after several turnovers; repeat if levels remain high

Will Phosfree affect my pool water clarity or equipment?

Because Phosfree binds phosphates inside the filter, it minimizes the chance of clouding that some treatments cause. The lanthanum compounds form a bond with phosphate molecules and stay in the filter until backwashing or cleaning removes them. Use as directed to avoid excess buildup on filter media and perform routine maintenance like backwashing or cartridge cleaning.

• Designed to work in-filter to reduce water cloudiness
• Compatible with common filtration systems when used per instructions
• Periodic filter cleaning/backwash recommended after treatment cycles

How does lowering phosphates help my regular pool routine?

Reducing phosphates removes a nutrient source for algae and can make sanitizers and shock treatments more effective, which can translate to fewer corrective products and less frequent algae control. While Phosfree is not a sanitizer, using it alongside your normal chlorine or salt system helps keep chemical balance and clarity more manageable. Combine phosphate removal with routine testing for the best results.

• Helps algae-control measures work more efficiently
• Can reduce need for repeated corrective chemical dosing
• Best used as part of a regular testing and maintenance plan

Who is this for: Natural Chemistry Phosfree Phosphate Remover (3 L) is ideal for pool owners and maintenance professionals who want a straightforward, in-filter phosphate reduction method to support clearer water and more predictable sanitizer performance. It’s especially useful for pools experiencing recurring algae issues or pools in regions with high phosphate source water. Always read and follow the label for safe handling and correct dosing.