In an effort to integrate water-sensitive urban designs into current practice the National Plumbing Regulators Forum (NPRF) for Australia and New Zealand formed the Australasian Scientific Review of Reduction of Flows on Plumbing and Drainage Systems (ASFlow) Committee to conduct research into the effects reduced flows are having on drainage systems.

Since AsFlow first formed, there have been many discoveries in the improvement of water flow and drainage solutions.

Several of these changes pertain to waterless urinals. Several companies would like to make it clear that waterless urinals are a viable alternative to full flush systems and that installation is easy.

The latest amendments to the AS3500 with regard to waterless urinals states:

11.24.2.3 Non-flushing (waterless) urinals
Waterless wall-hung urinals with an integral cartridge seal or integral self-sealing mechanical device may be installed without an additional fixture trap or self-sealing mechanical device.
Prior to installing a waterless wall-hung urinal to an existing system, the installer shall determine the materials of the pipes in the existing system.
The undiluted discharge from the urinal shall not be transported through copper pipework.
11.24.3 Conversion to waterless urinals
Urinals shall not be converted into waterless urinals unless the wall-hung or slab urinal has been authorized for use as a waterless urinal, and the requirements of Clauses 11.24.2.1 and
11.24.2.3 have been satisfied.

Waterless urinals work extremely well when installed and used correctly and are an excellent water saving product.