How to Prime Your RV Water Pump: A Comprehensive Guide

grey shurflo water pump

There may come a time when you need to prime your RV water pump to keep it running smoothly. In this guide, i will be helping you with a step by step guide for priming your rv water pump. I will also go over stuff from understanding the basics to performing the priming operation. Come on, let's dive in.

Table of Contents

  1. Introduction
  2. Understanding Your RV Water Pump
  3. Why Prime Your RV Water Pump?
  4. Tools and Materials You'll Need
  5. Step-by-Step Guide to Priming Your RV Water Pump
    • 5.1. Shutting Off the Power
    • 5.2. Locating the Water Pump
    • 5.3. Preparing the System
    • 5.4. Priming the Pump
    • 5.5. Testing the System
  6. Common Issues and Troubleshooting
    • 6.1. Low Water Pressure
    • 6.2. Strange Noises
    • 6.3. Leaks
  7. Maintenance Tips for Your RV Water Pump

Understanding Your RV Water Pump

Before we dive into the priming process, let's briefly understand your RV water pump.This small piece of equipment pressurizes the water system in your vehicle. By doing this, it allows water to flow from your tank to your faucets and appliances. It's vital to maintain this pump to ensure a steady water supply during your camping adventures.

Why Prime Your RV Water Pump?

Priming is essential because it removes air from the system and allows the pump to work efficiently. If air gets trapped in the pump or water lines, it can hinder water flow and lead to potential damage. Regularly priming your RV water pump can prevent these issues.

Tools and Materials You'll Need

Before you begin, gather the following tools and materials:

  • A wrench or specific screwdriver
  • A bucket
  • Teflon tape
  • Freshwater supply
  • A water pump primer kit (if necessary)

Step-by-Step Guide to Priming Your RV Water Pump

Follow these steps to prime your RV water pump effectively:

  1. Shutting Off the Power

    • Disconnect any electrical power sources to the water pump to ensure safety.
  2. Locating the Water Pump

    • Locate your RV's water pump. It's typically near the freshwater tank or in a storage compartment.
  3. Preparing the System

    • Ensure your freshwater tank is filled.
    • Open a faucet to release pressure in the water system.
  4. Priming the Pump

    • Use your wrench or screwdriver to loosen the water pump's fitting. This will remove the connection to the freshwater tank or city hookup.
    • There should be one end of the water pump open now.
    • Use a bucket or some type of container with lots of water to pour into the open end.
    • Turn on the water pump and let it run until you see a steady flow of water into the bucket.
    • Tighten the fitting securely.
  5. Testing the System

    • Close the faucet you opened earlier.
    • Turn on the water pump and check if the water flows consistently from the faucets. If it does, your pump is now primed and ready for use.

Common Issues and Troubleshooting

Here are some common issues you might encounter with your RV water pump and how to troubleshoot them:

Low Water Pressure

  • Check for leaks in the system.
  • Ensure your freshwater tank is filled.
  • Clean or replace the water filter.

Strange Noises


  • Tighten any loose connections.
  • Replace damaged pipes or fittings.

Maintenance Tips for Your RV Water Pump

To keep your RV water pump in excellent condition:

  • Regularly check for leaks and loose connections.
  • Clean or replace the water filter as needed.
  • Lubricate moving parts as recommended by the manufacturer.


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Priming your RV water pump is a simple yet crucial maintenance task that ensures you have a reliable water supply while camping. By following the steps outlined in this guide and performing regular maintenance, you can enjoy worry-free adventures in the great outdoors with CamperRules.

About Author:

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Hi, I'm Kevin Pommells, a lover of camping and the great outdoors as everyone says nowadays. I'm also a passionate soccer fan and the proud owner of, a website dedicated to helping campers and outdoor enthusiasts make the most of their adventures. With years of experience exploring the wilderness and a deep love for the sport of soccer, I'm always looking for new ways to combine my two passions and share my knowledge with others. Follow me for tips, tricks, and insights on all things camping and outdoor recreation.

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