What is the speed of filtration of the EVA fountain

It takes 30 minutes per liter of filtered water. Let 2 liters per hour.
The EVA fountain ensures this complete purification of your water, from 7 to 9 steps tap, thanks to a series of natural filters. There are 2 compares for the EVA Fountain at gravity:
EVA fountain with 7 liters gravity, Suitable for daily needs of 1 to 3 people.
Eva fountain 12 liters, is suitable for the daily needs of a family of 3 to 5 people.
Eva fountain at gravity 25 liters, is suitable for daily needs of more than 6 people. For a company, an association, a club etc ...