How to Prime a Well Pump? Why Do You Need to Prime a Well Pump?

Do you want to know how to prime a well pump for the first time? If you have newly purchased a well pump, but have no idea how to use it, then this is the right place for you to collect the best information.

According to the latest report of U.S. Geological Survey, around 15% of the US population relies on private pumps as the primary source of their water supply. If you are nervous about whether a well pump is functional or not, do not panic because 43 million US population is already dealing with it. And you are one of them!

Before you step into the detail of how to prime a well pump, let’s give you a quick review of what this well pump is all about and why you should use it. Let’s dive into the discussion below:

What is meant by Self-Priming Well Pumps?

Not all the well pumps need getting manually primed as you install them for the first time. To clearly understand this whole concept, you need first to know two basic types of well pumps which are:

1. Submersible well pumps

These pumps operate entirely underwater. The pumping unit is generally placed within well casing, and it is connected through the power source at the top of the well. For the deep wells, these well pumps are highly recommended. You don’t need to prime them because they are working underwater.

2. Non-submersible well pumps

These well pumps are great for shallow wells. As they are being operated above the well water, they should be primed at the time of installation.

Why is it Important to Prime a Well Pump?

Priming the well pump is necessary because it creates an internal pressure needed to draw some water from the well. You have to pump it in a direction where you want it to go.

Well, pumps are classified into two main types: Submersible deep-well pumps and Non-submersible shallow-well pumps. There is no need to prime the submersible well pumps because they are operating under the water.

Any primed pump with proper fittings, installation, valves, and piping will ensure that no leakage will happen in the system. It even prevents the backflow in piping in case the pump has been turned off.

When installing a well-pump system, you should check the foot valves or valves and inspect if they are working accordingly.

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Step by Step Guide on How to Prime a Well Pump

To successfully prime a well pump, you have to follow the below-mentioned steps carefully. Have a look below:

  1. First of all, you have to just turn off the pump and completely disconnect it from all electrical outlets.
  2. Now carefully inspect the whole pump and its connectors against any cracking or damage.
  3. Just locate and remove off the prime plug located at the top of the pump head.
  4. Now open the release valves if it is possible to prevent the pressure buildup.
  5. You have to clean the lead-free hose by simply running the water all through it. The hose is the easiest approach with which you can re-prime the whole pump. For cleanliness, you can even use a bucket or a large bottle.
  6. Now use the hose for filling up the pump casing with some water. Fill it up until it does not come out of the prime plug and relief the valves. Afterward, replace the main prime plug. The specific water source you are using for filling the casing requirements should match with the application of well pump.
  7. Reconnect the well pump and get it run through a regular cycle. If it is working usually, you can close the relief valves.

What to do if the well pump won’t prime?

If the well pump is causing some malfunction, it is likely because there is a broken pump component. All such components can be either the check valves or the foot, which requires a replacement. Sometimes leaky pipes or loose fasteners can even occur.

If the pump has started losing pressure, you should monitor the pump’s water pressure through the installation of an external pressure gauge. This might be happening due to a clog that has occurred in the property’s water lines.

Sometimes everything is working perfectly, but still, you are not satisfied with the water pressure. If you are into the same thought, then installing a booster pump is the best solution. Generally, the process to prime a well pump and pressure tank is the same. 

What are the Common Reasons to Prime a Well Pump?

  • A week valve which should be replaced immediately
  • Malfunctioning in the check valves
  • Leaking pipes or loose fittings
  • Un-glued fittings which are allowing the water or air to leak
  • Seals are broken
  • Piping has blockage
  • Pump is damaged
  • Loose fasteners or connectors

No doubt that even the smallest leak in the piping system can disturb the whole pump’s functioning very badly. It will drive you crazy!

It is always recommended to check the threaded fittings for the air leaks and ensure that the pipe has been completely tapped. All the loose fittings should be tightened to prevent leaks.

Can you prime a well pump more than once?

Well self-priming pumps do not require enough priming all the time. But there are yet certain conditions in which you should re-prime your well pump.

If you notice that the foot valve has stopped working and the water has fallen back into the cistern, it is all due to the air pocket which has been built within the pipe. This is the situation when you should consider priming the pump.


It is a fact that choosing the best filter will prolong your whole life. Clean and healthy water will keep your body healthy and strengthen your immune system. And this is just possible through the selection of the right water filter. Try to look for the best one so you won’t have to deal with the issues that are associate with dirty and unclean drinking water.

We have tried our level best to provide you with accurate information and details to save you from the worry of going through the market.

Hi, I am Alex running a small team of writers in bringing you Water Filter Insight to do complete market research for buying the best water filters. I am very much conscious of finding the right product for your household.

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