http://livegreenlivesmart.org/blogs/jolly_green_gardener/archive/2007/06/19/geothermal-well-drilling.aspxToday the geothermal guys started digging the wells that will transfer warm air between the subsoil and the house. The rig for drilling is basically two big trucks, one drill rig with a large drill bit, and a water truck to pump water alongside the drillenCommunityServer 2007 SP1 (Build: 20510.895)