To help our customers install their Johnson Ultra Ballast Pumps we have developed the guide below. Wiring a reversible pump must be done correctly so that the pump will run both in forward and reverse. This is done by reversing the polarity at the switch. If you don't want to bother with figuring all of this out, consider picking up our Pre-wired Switch Connector for Reversible Pumps, which makes the install a plug-and-play process and will work with both Jabsco and Johnson flexible vane impeller pumps.