The greywater is filtered before it goes into the tank where it is collected to strain it of solids. Following pre-filtration, the water in the tank is circulated with ozone, which kills bacteria, and filtered through a multimedia filter. The multimedia filter removes contaminants such as nitrates in case someone has urinated in the shower, for instance.

 

It ensures that the water which comes out of the system is Class 3 which is suitable for toilet flushing and irrigation purposes. The water is then pumped to the hotel for reuse. Greywater is all waste water except toilet waste and kitchen waste.

 

It is economical to capture greywater in a hotel because it can easily be rerouted as services are on top of each other. The payback period for a greywater system can be as early as two years.