How To Prime An RV Water Pump

There is no doubt water plays a critical role in our lives. If you like, it holds everything else together. Now, if you ever find yourself in the wild camping in your Recreational Vehicle (RV) and the water pump decides to kaput, the fun part of the trip could just end. You should learn about how to prime the RV water pump in minutes and resume merrymaking

In this simple guide, we will give you a step-by-step process by which you can easily restore your RV pump in minutes.

But first, we’ll see why it is important to prime your RV water pump.

Importance of Priming an RV water pump

RVs are typically used in large-scale during specific festive seasons. This means they could lie in the company yard or your home for months before they are actually used. Like every other stored equipment may have reduced performance, the RV water pump could lose its pressure when unused for long periods.

To resuscitate, you have to flush the RV water pump, and force water through it. This process of restoring the pressure of the pump is what is called “RV water pump priming”.

While the rest of the process is a sheer breeze, you may find locating the RV water pump such an arduous task. This is largely due to issues to do with making use of space in the RV and keeping things discreet. As a starting point, however, you should always check below the benches and inside cabinets before you widen the search to adjoining areas.

Once you locate the pump, you are halfway through. You could only worry about how to prime RV water pump, which is now before you.

Now, the main reason why you need to prime an RV water pump is that your life depends entirely on it when you are deep inside the woods.  The RV water tanks typically hold between 50- 200 gallons of water and have varied speeds of dispensing water, often between 3.5-5.3 gallons per minute.

Your consumption needs would most likely determine the types of RV water tanks you get and the water speed. For example, if it is just you and your wife in the RV, a smaller tank is ideal. However, if the entire family with 2-3 more kids onboard, a bigger tank would be handy.

Now quickly to how to prime your RV water pump.

Steps On how to prime RV water pump


You will require the following tools to effectively prime your RV water pump

  • Water
  • Rubber tubing
  • Jar
  • Screwdriver (preferably a flathead)

Step 1 

The first step is to turn the screw on the pump’s collar using the screwdriver to disconnect the water pump from the water outlet. You should turn the screw in a counterclockwise direction until it becomes loose.

Carefully pull the fresh water hose from the pump. Water usually flows through this hose into the RV from where it is distributed to the kitchen, toilet and showerheads.

Step 2

Slip off the collar from the rubber end of the water hose. You will notice spouting at the RV water pump. Connect the rubber hose to this outlet. You should do this by ensuring the hose and the water line are of the same size. Screw the clamp down to position.

Step 3

You will need at least 12 ounces of water. Fill up the jar with water. Next, suspend the water hose already connected to the outlet in the air just in a position higher than the water pump. Carefully fill the hose with the water in the jar.

Step 4

Now place your thumb on the tip of the suspended hose then turn on the water pump. Allow the pressure to build up in the hose until you feel water making contact with your thumb. Once you feel water on your thumb, turn off the pump.

Step 5

Take out the hose from the outlet and reconnect the water outlet line. Next, turn on any of the installed faucets in your RV and turn on the water pump.  In no time, the water will be gushing inside the outlet to mark the end of priming. Turn off your faucets and water pump. Simple?

Now You Know How To Prime RV Water Pumps

The last thing to bother you in your RV should be how to prime RV water pump, with this guide, you should be smiling all the way into the deeper ends of the woods after solving the problem. One last thing to remember is that you should make sure you stay safe while driving your RV.

Hatice Degirmenci