dc.description.abstract | Without water, we are unable to visualise a single organism, since water is the main requirement for every arrangement of the world. “Freshwater accessibility in the world is 2% of the overall stock of water in the hydrosphere”. So, we must manage the available fresh water. Some investigations are contributed to the causes and significances of water use by the industries. From those outcomes, the tourist hotel sector uses far more water than the other industries. This research mainly focused on tourist hotels around the coastal belt of the Colombo district. Water management there will be helpful to improve future designs criteria of the NWS&DB. The main aim of the research is to help effectively manage the demand for water NWS &DB and for the future forecast of industrial water demand. Data were collected from the NWS&DB and from onsite surveys. Mainly seasonal variations can be found from the tourist hotel sector. The water use efficiency of hotels was also clarified as a function of ‘influential variables’; The number of rooms, average room rate and number of employees, somewhat correlated with the water consumption and obtained the linear relationship among them. Finally, an equation for both season and off-season consumption was built up. If the expected increment of tourist sector occurs, the pressure on the fresh water will correspondingly increase. Tourism of that area will become unstable and it will badly affect for all the sectors. Therefore, a precautionary water management approach is built up. | |