Retap is a Danish company. Their motto is 'to rethink water’. After the Climate Conference in Copenhagen in 2009, the top designers set itself the goal to do something about the nonsense product "bottled water" (Spa etc.). The disposable PET bottles and transport have great environmental impact. Just drink tap water is the solution because it meets strict requirements in Europe, at least as strict as those for bottled water, according Retap.