2 Wire and 3 Wire Submersible Well Pump Motor Wiring May 24, 2018In this video, I go over the differences of a 2 wire and a 3 wire submersible well pump is associated with the starting components for the pump [PDF] MODEL WG20 - filesairliterature MODEL WG20 DUPLEX GRINDER PUMPS For Myers WG20 Duplex Grinder Pumps with Lift-Out Rail System Installed in Fiberglass Basin at Factory as Complete System, or Rail Parts for Installing shown on wiring diagrams. 3. Install control box on cover and connect to cover Myerspumpsupply - Myers Pumps, Sump Pump, Submersible Myers 4" 3-Wire Deep Well Submersible Multistage Water Well Pumps, Myers 4" deep well submersible pumps. Centrifugal multi-stage, 3-wire, with electric motors & control boxes for domestic water and boosting applications. Find out more. Myers Pentair Submersible Well Pump Control Boxes.