For impoverished people, every peso counts. Buying clean drinking water locally is essential in most areas of Mexico, since people can't afford their own filtration systems. Delivery services are an additional cost, so self-serve water stations work well for most people. On average, water kiosks in town fill 50 to 150 five-gallon (19-liter) bottles a day, and the average cost per bottle is 10 pesos or roughly 80¢. After utility, rental, service and maintenance costs we estimate 60¢ profit per five-gallon bottle. At 50 refills a day, that averages US$30. The conservative estimated annual income is roughly $10,000 a year. Thanks for helping us set up our first kiosk!! This is to fund our second water station.