Low flush study
ACTPLA is managing a major study into the impact of low flush toilets on household sewerage systems.
In one of the most comprehensive studies of its kind, a full scale test rig has been constructed at the Canberra Institute of Technology (CIT) in Fyshwick. By using toilets connected to clear Perspex piping observers can watch how solids move through the system under variable conditions.
Designed to simulate the drainage installation in a standard two storey home, water-efficient 6/3 litre toilets and the newer 4.5/3 litre Smartflush toilets will be assessed using a soy product to mimic human waste.
The study will examine the effect of:
- different grades of piping
- flush volumes
- mass loading
- different drainage products, junctions, off-set pan collars.
It will also look at:
- friction, dips and sags in the line
- long runs (dead legs)
- grey/waste water removal
- carrying distance of effluent,
- blockages
- effects of open air venting on the system.
ACTPLA is conducting the study in co-operation with CIT, the ACT Plumbing Regulator with support from Caroma Industries, Vinidex Industries, O’Neill and Brown Plumbing Pty Ltd, Plastec Australia, Rehau Pipe and Southern Plumbing Plus.
