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.