Before the homeowner turns up the thermostat, before the HVAC contractor installs the equipment, and before you place the loops and grout the borehole, there is Step 1: the drilling of a good hole that stays open and allows for the loop to be installed to the required depth.
To many, that sounds simple. But recent geothermal conferences focus so much on the geothermal aspect of the system that we sometimes forget about the borehole. It does not matter if we are drilling a water well, environmental well or a geothermal hole — the basics of keeping the hole open are the same.