University of Wisconsin-Madison soil scientist Doug Soldat says up to 8,000 gallons of rainwater is enough to keep the lawn green and lush through the driest weeks of summer.
Soldat and graduate student Brad DeBels installed two 4,000-gallon tanks to collect rainwater from the roof of the turfgrass facility’s main building on Madison’s far west side. Water from those tanks is used to irrigate nearby turf via subsurface drip irrigation lines.