DESIGNER
Bill Day
Creator and designer of the Platypus Jar Tester and Platypus DAF Test Accessories, developed around practical bench-scale water treatment testing.
The Platypus Jar Tester and DAF Test Accessories were developed by renowned water industry engineer Bill Day, who designed and commissioned many of Australia’s water treatment plants. Platypus Analytics is now led by Process Control Engineer Colin Millen, who worked alongside Bill for around three decades.
Explore ProductsBill Day developed the Platypus Jar Tester and Platypus DAF Test Accessories as practical tools for the bench-scale analysis of primary water treatment processes. The equipment enables small-scale process trials to evaluate and optimise chemical dosing in operating water, wastewater and industrial treatment plants, as well as assess treatment processes and dosing options for new and existing facilities.
Colin Millen worked alongside Bill on engineering projects for approximately three decades before acquiring the business following Bill’s passing. That long-standing professional relationship provides Platypus Analytics with continuity in the engineering knowledge, practical thinking and design principles behind the products.
With more than 40 years of process-control engineering experience across water treatment and related industries, Colin brings extensive practical knowledge to Platypus Analytics. This experience supports informed conversations with customers about equipment selection, testing objectives and the effective ongoing use of Platypus equipment.
Creator and designer of the Platypus Jar Tester and Platypus DAF Test Accessories, developed around practical bench-scale water treatment testing.
Process Control Engineer with more than 40 years of experience, and a long-standing engineering colleague of Bill Day before purchasing the Platypus business.
Our role is to provide practical equipment and information that help operators, researchers, consultants and engineers run controlled tests and better understand how treatment conditions may behave before full-scale implementation.
Discuss Your Application →Platypus products support organisations involved in water and wastewater treatment, mining and industrial water, research and education, laboratory testing, engineering and process consulting. International enquiries may be handled directly or through an approved regional representative where applicable.
View Global Sales →We value accuracy, reliability and sound engineering over unnecessary complexity.
We improve products in ways that solve real problems and make testing easier, safer or more effective.
We design for longevity, serviceability and dependable performance rather than disposability.
We support customers with clear information, technical guidance and accessible expertise.
We recognise that the work our customers do ultimately contributes to better management, treatment and understanding of water.
Tell us what you are testing, where the equipment will be used and any timing or compatibility requirements.