By Allan BudrisVertical turbine pumps (VTPs) offer many unique advantages for many applications. VTPs are available in deep well, wet pit (short setting or close-coupled), canned, and submersible motor configurations. Accordingly, my September 2008 column on the advantages and cautions of using VTPs on water and wastewater applications concentrated primarily on cavitation, vibration and axial thrust, as well as how to avoid the associated field problems.