Engaging Citizens with Rainwater Using Sandbags?

By sweeping flowsand into paving, approximately 50% of the annual precipitation volume is drawn downwards – into the soil. On Waterstraat in Delft, many interested parties have now seen flowsand and other innovative water solutions. Municipalities and water boards regularly request convenient packaging for campaigns targeting citizens and businesses. For each residence, approximately 20,000 liters/year can seep away if the paving is swept with a few bags of this special sand.