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Waterless Urinal Technologies

The most popular waterless technologies fall into 3 main categories. The systems differ in their approaches to combating the problems of odours and blockages that would otherwise result from not flushing.

 
 Microbiological Systems
  • replaceable cartridges use the action of microbes to break down urine into odourless components and use the trap or u-bend as the seal against odour from the drains. 
  • regular sluicing is required to prevent blockages.
  • incompatible cleaning products should not be used, otherwise the system can be disabled, resulting in odours and blockages
 
 
Liquid Barrier Systems 
  • replaceable cartridges or in-built traps collect debris to help prevent blockages.  
  • an oil-based sealant floats on top of the urine to prevent odours.  
  • infrequent sluicing is recommended, usually when cartridge is changed or urinal serviced
  • incompatible cleaning products and water may degrade the fluid seal, causing odours until the sealant is replaced
 
Valve Barrier Systems 
  • replaceable cartridges or in-built traps have a one-way valve or siphon to prevent foul air from entering the washroom. 
  • most models combine a single valve with a microbiological block to help break down urine and emit scent. The GW6 (illustrated) has a double skirt valve.
  • regular sluicing or servicing is recommended to prevent blockages
  • most, but not all, valve products are susceptible to damage by incompatible cleaning products. The latter should also not be used if a microbiological block forms part of the system.


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