Microbiological Waterless Urinal System

	Urine comes into contact with a block, often housed within a dome inserted into the urinal waste outlet. The block contains a number of active ingredients, including surfactants, but the most important of these is the microbial spores. Once taken down into the trap with the urine, the spores become active beneficial bacteria that 'feed' upon the urine and then multiply. By breaking down the urine into components, the bacteria from the block help prevent the build-up of sludge and crystals that are a major contributing cause to blockages. They also generate an environment hostile to the 'bad' bacteria that cause odours. Providing that some block is present and it contains the appropriate ingredients, then there is no requirement for "odour lock" mechanisms or valves. Appropriate cleaning chemicals must be used and simple but regular maintenance is required. Most importantly, the microbes cannot break down hair, grit and other debris that inevitably finds its way into the urinal trap and thence the waste runs. Therefore to push the debris down to the main drain before it can collect and cause a blockage, it is essential to pour some fluid down each urinal at regular intervals, usually once per week. This 'dosing' process is most effective when a mixture of warm water and an appropriate chemical is used.