In Alberta, the water well driller trade has the following branches:
- Water well driller - earth loop technician
- Water well driller - water well driller
For simplicity, the two branches are referred to as water well driller and earth loop technician in this profile.
To find water that is clean and safe for drinking, water well drillers must know the geological formations of the area in which they are working. They may assist customers in locating a well and estimating the cost. They also do environmental assessment drilling.
In general, water well drillers:
- Set up mobile rotary, boring or cable water well drilling rigs
- Operate rigs to bore holes for wells and line holes with well casings (steel or plastic pipes)
- Drill test holes and drill holes for pilings
- Record information about the geological formations encountered
- Put screens and pumps in place to develop the well
- Design and install a pumping system
- Clean and disinfect the well in preparation for use
- Maintain and upgrade their equipment
- Disinfect, re-construct and re-develop older contaminated wells and water pumping systems
Earth loop systems use the relatively constant temperature in the earth to provide heating and cooling for residential homes and commercial buildings. The earth’s energy is transported into the building using a fluid that runs through a series of closed loops that can be installed vertically or horizontally into the ground. These are called earth loops. Earth loop technicians bore into the earth and install earth loops.
In general, earth loop technicians:
- Set up drilling rigs
- Operate drilling rigs to bore holes and line the holes with well casings (steel or plastic pipes)
- Operate equipment such as excavators, backhoes and trench compactors to dig trenches for system piping
- Lay piping in trenches and backfill piping trenches to protect pipes from damage
- Record information about the geological formations encountered
- Calculate the size of pipes required
- Use pipe fusion techniques to assemble loop pipes
- Use grout mixers or pumps, geothermal loop reels, coil tubing units and other equipment to install earth loops
- Conduct quality tests of installed earth loop
- Help homeowners and engineers in the design of earth loops