Eva fountain: its filtration speed

It takes 30 minutes per liter of filtered water. Or 2 liters per hour.
The EVA fountain ensures this complete purification of your water, tap in 7 to 9 stages, thanks to a series of natural filters. There are 2 conceenses for the Gravity EVA fountain:
7 -liter eva fountain, gravity,Suitable for the daily needs of 1 to 3 people.
Fontaine Eva with gravity 12 liters, suitable for the daily needs of a family of 3 to 5 people.
Fontaine Eva with gravity 25 liters, suitable for the daily needs of more than 6 people. For a company, an association, a club etc ...