Caroma Innovation & Design Centre Tour with GWA Group
Exploring Innovation: Sparks+Partners’ team visits the Caroma Innovation and Design Centre hosted by GWA Group Limited.
In February, members of Sparks+Partners took part in a 3-hour CPD tour of the GWA Group Limited‘s extensive Caroma Innovation and Design Centre in Prestons, south-west Sydney. The visit offered a behind-the-scenes look at the latest research, production processes, and compliance testing that drive Caroma’s innovative approach to hydraulic services and plumbing solutions.
A Deep Dive into Production and Compliance
During the tour, attendees were introduced to Caroma’s state-of-the-art laboratory facilities, where rigorous testing ensures that all products meet the highest standards of durability and compliance. The production process was also showcased, emphasising the importance of prototyping in fixture development. Attendees observed how materials, shapes, and manufacturing techniques play a critical role in achieving both aesthetic appeal and functional efficiency.
A key highlight was the Hydraulic Tower, an essential component of Caroma’s research and development efforts. The tower, originally designed by industry leading hydraulic engineer Peter Donnelly—founder of Niven Donnelly & Partners and formerly of Sparks+Partners—for GWA in 2020, features transparent pipework that allows for visual observation of waste water behaviour in sanitary systems. This unique feature enables professionals to analyse and troubleshoot common issues related to venting, pipe sizing, grading, and stack connections, fostering improved plumbing designs.
The Hydraulic Tower and Its Impact on Industry Standards

One of the most significant contributions of the Hydraulic Tower is its role in shaping industry standards. The visual analysis provided by the tower led to a crucial update in plumbing regulations—such as the 15-degree junction requirement in AS3500.2-2021. This change was introduced to prevent partial backwash, which had been observed in systems without the requirement. The ability to test and visualise real-time wastewater flow dynamics has been instrumental in refining industry best practices.
Innovation in Hydraulic Services Design and Plumbing
Beyond compliance and testing, the tour highlighted Caroma’s commitment to innovation in product development. By integrating real-world hydraulic testing with advanced prototyping techniques, the company continues to push the boundaries of plumbing technology. The team at Sparks+Partners gained valuable insights into how live testing and quality assurance programs enhance the reliability and efficiency of new products before they reach the market.
Another fascinating aspect of the tour was the collaborative environment fostered by GWA. The tour allowed attendees to engage with Caroma’s Insights and Product Excellence teams, discussing emerging plumbing innovations and exploring solutions to industry challenges. This exchange of knowledge further reinforced the importance of continued innovation in plumbing design and installation.
Visiting the Caroma Innovation and Design Centre was a real eye-opener, showing just how committed GWA is to pushing the plumbing industry forward. A big thanks to the team at GWA Group for an engaging and informative tour that gave us a great look at the processes shaping the future of plumbing. With a strong focus on compliance, research, and continuous improvement, Caroma continues to lead the way in innovation, setting new standards for quality and sustainability.




