"A scientific approach to a growing fresh water challenge"

Restoration of impaired water bodies by the application of Phoslock

About the company

Phoslock Environmental Technologies

Phoslock Environmental Technologies (PET) is the parent company of the Phoslock group, headquartered in Sydney, Australia.

PET is the manufacturer and intellectual property owner of Phoslock®, a geo-engineered phosphorus-binding clay material developed by the Commonwealth Scientific Research Organisation (CSIRO) of Australia.

Visit PET Global Website

About us

Phoslock Water Solutions (UK) Ltd & Phoslock Europe GmbH

Phoslock Water Solutions (UK) Ltd and Phoslock Europe GmbH are wholly owned subsidiaries of Phoslock Environmental Technologies (PET) providing technical and commercial support for Phoslock® projects across the UK and Europe.

This website focuses on our regional activities, project experience, and phosphorus management expertise.

Who We Are

About Phoslock

About

Phoslock®

Phoslock® is a lanthanum-modified bentonite developed for phosphorus management in lakes, reservoirs, wetlands, and other water bodies.

It binds free reactive phosphorus in the water column.

Learn more about how Phoslock® works, environmental approvals, application methods, and technical publications through our dedicated product information section.

About Phoslock

About the company

PET

Phoslock Environmental Technologies

Phoslock Environmental Technologies (PET) is the parent company of the Phoslock group, headquartered in Sydney, Australia.

PET is the manufacturer and intellectual property owner of Phoslock®, a geo-engineered phosphorus-binding clay material developed by the Commonwealth Scientific Research Organisation (CSIRO) of Australia.

Visit PET Global Website

About us

Phoslock Water Solutions (UK) Ltd

& Phoslock Europe GmbH

Phoslock Water Solutions (UK) Ltd and Phoslock Europe GmbH are wholly owned subsidiaries of Phoslock Environmental Technologies (PET) providing technical and commercial support for Phoslock® projects across the UK and Europe.


This website focuses on our regional activities, project experience, and phosphorus management expertise.

Who We Are

About Phoslock

About

Phoslock®

Phoslock® is a lanthanum-modified bentonite developed for phosphorus management in lakes, reservoirs, wetlands, and other water bodies. It binds free reactive phosphorus in the water column.

Learn more about how Phoslock® works, environmental approvals, application methods, and technical publications through our dedicated product information section.

About Phoslock
A white background with a few lines on it

LATEST NEWS

Blue PHOSLOCK flags by a pond in a sunny park.
by Damian Whelan 11 May 2026
Golf course lakes and ponds face increasing nutrient management pressures. This article explores phosphorus dynamics, internal loading and integrated management approaches that support long-term water quality planning across managed aquatic features within golf course and resort environments.
Person in blue watering plants by a lake with a spray of water, surrounded by green trees and reeds.
by Damian Whelan 15 April 2026
Excess phosphorus remains a key challenge in freshwater management. This article explores nutrient dynamics, internal phosphorus loading, and the importance of evidence-based approaches to long-term water quality planning across lakes, reservoirs and managed aquatic systems.
Aerial view of a dark lake surrounded by lush green trees, with a sandy area on one side.
by Damian Whelan 7 March 2026
This article is based on a case study prepared by Sandhurst Lake Fishery owner Nick Leach, describing how internal phosphorus loading was identified and addressed as part of a long-term lake management strategy to improve water quality at the fishery.
Show More News

We have carried out over 300 water treatment projects all over Europe and across the world


For more information about the Phoslock treatment or to start a conversation about treating your lake, reservoir or canal, please get in touch. Where appropriate, we will forward your request to a local licensed distributor.

A blue map of europe on a white background

We have carried out over 300 water treatment projects all over Europe and across the world


For more information about the Phoslock treatment or to start a conversation about treating your lake, reservoir or canal, please get in touch. Where appropriate, we will forward your request to a local licensed distributor.

A blue map of europe on a white background
A white background with a few lines on it