How to Wire a ShurFlo 2088-422-144 Water Pump

by David Young

A ShurFlo pump can be used for many pumping applications on a recreational vehicle. Whether it's pumping clean water into a shower or pumping gray water out of a shower, ShurFlo pumps are versatile and can be adapted to many applications. Installing a ShurFlo pump may require the help of a plumber; however, wiring the pump is easy and can be done with just a few basic tools.

Disconnect the negative battery cable from the vehicle's battery with an open-end or adjustable wrench. Disconnect the positive battery cable from the vehicle's battery.

Choose a suitable, convenient location to mount the control switch. Run a 14-gauge wire from the ShurFlo pump to the switch. Strip 1/4 inch of insulation from both ends of the 14-gauge wire. Strip 1/4 inch of insulation from the red wire on the ShurFlo pump. Connect the red wire to the 14-gauge wire by sliding both bare ends into a crimp connector and crimping it securely. Slide the other end of the 14- gauge wire under a terminal on the switch and tighten the terminal screw securely.

Run a 14-gauge wire from the switch to the battery compartment. Strip 1/4 inch of insulation from each end of the 14-gauge wire. Slide the bare end of the wire on the switch end under the remaining terminal on the switch and tighten the terminal screw securely. Slide the other end of the 14-gauge wire into a terminal on an auto-resetting circuit breaker. Tighten the terminal screw securely.

Run a 14-gauge wire from the other terminal on the auto-resetting circuit breaker to the positive battery cable. Strip 1/4 inch of insulation from both ends of the 14-gauge wire. Slide one end into the open terminal on the circuit breaker and tighten the terminal screw securely. Slide a ring connector onto the bare end of the 14-gauge wire and crimp it securely. Attach the ring connector to the screw-clamp on the positive battery cable.

Run a 14-gauge wire from the ShurFlo pump to the battery compartment. Strip 1/4 inch of insulation from both ends of the 14-gauge wire. Strip 1/4 inch of insulation from the black or negative (-) wire from the ShurFlo pump. Connect the 14-gauge wire to the negative wire by sliding both bare ends into a crimp connector and crimping it securely. Slide a ring connector onto the other end of the 14-gauge wire and crimp it securely. Attach the ring connector to the screw-clamp on the negative battery cable.

Reconnect the positive battery cable followed by the negative battery cable and tighten both securely with a wrench. Turn the pump switch to the "On" position and check for proper operation. Check all connections if the pump fails to operate correctly.

Tip

  • check Wire nuts can be used in place of crimp connectors.

Warning

  • close Ensure that the circuit breaker is rated properly for the amperage of the pump motor.

Items you will need

About the Author

David Young has written for the website for the Save Darfur Coalition and is currently writing articles for various other websites. Young holds a Bachelor of Arts in philosophy from Western Carolina University.

Photo Credits

  • photo_camera rv image by Greg Pickens from Fotolia.com