Little Giant W22G15S9-32P - 1-1/2 HP 22 GPM Deep Well Submersible Pump (3-Wire 230V)

Q: What is the difference between 2 wire and 3 wire 220V pumps, which is best
by Harold from Texas on July 05, 2016

A: Harold,

The difference between the 2 and 3 wire pumps is that the 2-wire (actually 3 because there is a ground) includes all the pump starting components inside the pump which is located down in the well. The 3-wire (actually 4 because there is a ground) connects to a control box above ground. this control box includes all the pump starting components, i.e, quick disconnect relay, overloads and capacitors so if there is a problem and one of those components is the cause of the pump failing, it is much easier to replace those components.
by Jim, Product Expert