Erskine and parts of Falcon will be the next areas included in the Water Corporation's 10-year pressure management program.
Water Minister Mia Davies today announced the next stage of the program, which aimed to prevent leaks and pipe breaks, and was expected to help save more than 10 billion litres of water each year once completed.
"Pressure management works by reducing high water pressure in pipes and is proven to lower water use," Ms Davies said.
"The Liberal National Government is supportive of the program and we are already saving about 260 million litres of water each year in Rossmoyne, Shelley, Waterford and Beckenham, where pressure management has been introduced."
The Minister said suburbs were prioritised by the corporation based on existing water pressure, the historical frequency of leaks and breaks in the pipe network, as well as overall water use.
All pressure managed areas are designed to deliver a water pressure of more than 35 metres head at all times, which is more than double the required minimum standard of 15 metres head.
Erskine and Falcon have higher than average water pressure, in the range of 51 to 53 metres head, with pressure changing depending on the time of day and peak demand periods.
The corporation will gradually reduce water pressure in stages starting early next year.
Ms Davies said a community liaison team would work closely with residents and businesses which were part of the program to keep them informed before any pressure reductions took place.
For more information about the program, including an interactive map of potential and existing areas being pressure managed, visit http://www.watercorporation.com.au/Pressure
The Water Corporation introduced the pressure management program in Beckenham in 2014 following a successful trial in Rossmoyne, Shelley and Waterford between 2008 and 2010
The area in Falcon selected for pressure management is south of Old Coast Road, bordering Erskine
The corporation's community liaison team can be contacted via emailing email@example.com or phone 9420 3667
Minister's office - 6552 5500