Natural Chemistry Phosfree Phosphate Remover 2 x 2L Pack – Lanthanum Filter Coating to Reduce Phosphates & Prevent Algae

Natural Chemistry Phosfree is a lanthanum-based phosphate remover that coats filter media to lower pool phosphates to very low levels and help keep water clear.

Phosfree uses a patented lanthanum formula designed to bond with phosphates as pool water passes through your filter, reducing the food source for algae and helping maintain sparkle without frequent manual dosing. Supplied here as a convenient 2 × 2 liter pack, it’s intended to be added via the skimmer so the product forms a thin, active coating on sand, cartridge or DE filter media.

How does Phosfree actually lower phosphates in my pool?

When introduced into the skimmer, Phosfree distributes through the circulation system and deposits a microscopic lanthanum coating on the filter media. Phosphate molecules bind to this coating in the filter, becoming trapped and removed from the water as filtration continues.

• Lanthanum compounds adsorb phosphates directly from flowing water.
• Filter-based action avoids clouding by keeping reactions inside the filter.
• Continuous filtration gradually drives phosphate levels down to very low values.

When and how should I apply the Phosfree 2L bottles?

Apply Phosfree via the skimmer following product dosing instructions for your pool volume and existing phosphate level. It’s typically used after testing phosphates and then added during normal circulation so the filter picks up and retains the lanthanum coating.

• Test phosphate levels before treatment to determine required dose.
• Add through the skimmer while the pump and filter are running.
• Repeat dosing as needed based on subsequent phosphate tests and water turnover.

Will Phosfree cloud my water or disrupt filtration?

Phosfree is formulated to work in the filter rather than in the pool water, which minimizes cloudiness. Because the active chemistry bonds in the filter, it reduces the chance of visible clouding while maintaining normal filter operation.

• Designed to coat filter media, not stay suspended in the pool.
• Compatible with common filter types: sand, cartridge, and DE.
• Regular backwashing or cleaning removes accumulated phosphate-laden media when necessary.

How does using Phosfree change routine pool maintenance?

Using Phosfree can simplify maintenance by reducing phosphate levels — a common nutrient for algae — which in turn helps sanitizer work more effectively. It complements, rather than replaces, normal testing, sanitizing and filtration practices.

• Fewer phosphate-driven algae issues when levels are kept low.
• Maintains clearer water so visual checks are easier and more reliable.
• Continue routine sanitizer, pH and filter maintenance schedules.

Who is this for: Natural Chemistry Phosfree in the 2 × 2 liter pack is suited to pool owners and service professionals who test regularly and want a proactive, filter-based solution to manage phosphate levels. It’s recommended for pools with recurring phosphate buildup or algae concerns, and for anyone seeking a product that integrates into existing circulation and filtration systems rather than requiring large-scale chemical shocks. Always follow label directions and test phosphate levels to determine appropriate dosing before use.