A water station that sells purified or filtered water is not really a big money maker. The greater expense is on the labor force. You need a staff to delivery the bottles of water and carrying it from the vehicle to the house of the customer. The mark up is okay but the overhead is quite heavy considering that you need to rent a commercial space, you also need a delivery vehicle and the driver that could also be the one to carry the big water bottles. In the store there is the staff who purifies the water. He should be very careful because once a customer finds impurities in the weather then your business is doomed. About 10 years ago there were more than 10 water stations here. But now there are only 2 because of the big expense that made the business lose money.