DFO Homebush

Ultraflow Project: DFO
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Water Flow rate:



Buchan Group

Mainbrace Constructions


460 litres per second

4 main

Connect 500,000 litre in-ground harvesting system; All work conducted outside operating hours.

As a retrofit project, Ultraflow was challenged to re-design and install a new Siphonic water management system with minimal disruption to the ongoing operation and trading of the site whilst also effectively re-purposing viable existing components.

With an area of 7,000m2 and only 4 downpipes, the team at Ultraflow cleverly re-used the majority of existing high-level collector pipe, replacing the pre-existing, inadequate system with higher performance Ultraflow Siphonic outlets.

In addition, an existing 500,000 litre in-ground network of harvesting tanks were re-connected with all works undertaken outside trading hours, from 6am-9am and 6pm-2am.

Requiring detailed coordination with tenants and minimising disruption to the ongoing operation of the site, the project included the engineering and construction of new large bore pipes through the level 1 car park to access the in-ground water tanks.

The Ultraflow Siphonic system successfully proved itself with the ultimate test shortly after completion, in Sydney’s ‘once in 100 year’ storms during June 2016.

To find out more about what Ultraflow can do for you