Phoslock® is a CSIRO developed formulation of bentonite lanthanum.

  • Locks up phosphorous safely and permanently
  • Environmentally friendly – non toxic to humans, animals, fish and aquatic plants
  • Internationally certified for use in drinking water reservoirs

High concentrations of phosphorus in water bodies leads to quality, health and odour issues.

hoslock permanently binds phosphate and forms a new inert mineral called rhabdophane which becomes part of the natural lake sediments.

By removing excess phosphate the water quality and amenity is significantly improved.

Case Studies

Learn more

Application Methods

Learn more


Learn more