12. According to a customer:
Previous system:
14-21 liters of water per sqm per week
Natural Greenwalls-system:
1,5-2,5 liters of water per sqm per week
13. 0
50
100
150
200
250
1 2 3 4 5 6 7 8 9 10 11 12 13 14 15
Water use in liters per week/per sqm
NGW-worst case Other system-best case