It is common for cities to purchase water from other cities with consumption being metered. Installing a SmartWaterValve on that supply line can significantly reduce your water expense. Additionally, various Departments within a City (e.g. Airports, etc) may want to ensure they are not being over charged for the water they buy from the city could make their meter read more accurately and significantly cut their bill by installing a SmartWaterValve on their side of their water meter.