Europe is the largest winemaker in the world producing 188 million hectoliters per year, followed by the US producing 33 million hectoliters. The wastewater produced by wineries is often a seasonal affair that must be dealt with flexibly. Owners of wineries often hesitate to treat their wastewater due to the cost. For example, a German winery pays €250,000 per year for disposal at the local treatment plant. Giving such wineries an incentive to treat their wastewater would encourage them comply with environmental standards, even without the pressure of regulations. With a Hexem System, a cost effective alternative can be rented when the season requires it. Hexem offers attractive rental plans that pay off.