Home Improvment

How to Replace a Water Pump

Many factors can cause a water shortage in your home or place of work. However, water pump damage is the main cause of water shortages in many residential areas. In most cases, the water pump has some of its parts damaged or it is simply too “tired” to pump the water.

When you install a water pump in your home, you hope that it is going to serve you for as long as possible. Sadly, the water pump is not going to last you forever so you will have to replace it at one point. Fortunately, I am going to provide you with a step by step guide on how to replace a water pump effortlessly.


So how do you replace a water pump? Well, the preparation stage is very important. First, you will have to remove the old water pump in order to give space for the new one. In my experience, I cannot assure you that this will be an easy task as it involves a lot of effort and patience. However, I can assure you that at the end of the day you will be able to get around the task if you have proper tools, materials, and confidence that you can do it.

Still, at the preparation stage, you should decide whether you want to replace the water pump with the same model that was there before or you want to install a different type. However, your choice here does not entirely depend on your personal preferences. You will make your choice depending on the water level and the cost of the water pump.

Turn off the Power

After deciding the type of water pump that you want to install and you have removed the previous one, proceed to turn the power off from the main circuit breaker. This reduces the risk of electric shock that may eventually lead to electrocution. It is important to adhere to all the other safety measures such as wearing protective gear as well. After that, remove the old inlet and outlet tubes that connected to the old water pump. In most cases, you will need a plumber for this but if you have the plumbing tools, you can do the job alone. Also, remember to remove the old electricity wires that connected to the old water pump as well.

Installing a Jet Water Pump

The process of replacing different water pumps is slightly different. In that case, I am going to provide the steps of the major water pumps in the market currently starting with the jet water pump. If you chose to replace the old water pump with a jet water pump, the process is rather simple. Simply read the instructions on the package and install it accordingly. While at it, ensure that the inlet and the outlet pumps are well sealed to avoid water leakages. After that, proceed to connect new electricity cables to the water pump and the main switch. Remember, before using a jet water pump, you should first prime it.

Replacing a Submersible Water Pump

Replacing a submersible water pump is a tricky but manageable task. You will need a helping hand in this because of the tricky procedures involved. Also, the tools and materials needed for this task are different from the ones used in other types of water pumps. Here, you will need a high-quality flashlight, a couple of pipe wrenches, a knife, submersible pump wires, nuts and pliers amongst other tools that you might deem necessary for the project.

The submersible water pump has plenty of features and parts. Just like replacing the other types of water pumps, the power should always be switched off for obvious reasons. First, you will need to remove the hex nuts using a pipe wrench. After that, remove the well-cap so that you can gain access to the interior parts, especially the wires. Keenly remove the wires while you mark where each of them came from.

Once you have keenly removed all the parts including wires and pipes that might have connected to the old submersible water pump, it is time to install the new submersible pump. Lay it down strategically to fit the diameter measurements left by the previous pump. Connect the wires and the pipe according to the instructions provided by the manufacturer. The process should not be hard considering that you are replacing a like for like water pump.

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Pro Tips

When replacing a water pump, the following pro tips will allow you to finish the project in time:

  • Always gather all the tools and materials that you will need beforehand.
  • When replacing a submersible water pump, a helping hand will help you complete the project faster.
  • Regardless of how many times you have replaced a water pump before, always consider reading the user’s guide before beginning the project.
  • Always tighten the joints tightly to avoid leakages during and after the installation. A leakage will always take you back when you think you are done.

Why Replacing a Water Pump is Important

Regardless of the type of water pump that you want to replace, it is always advisable that you do so in the minute that you discover great malfunctioning. Like any other machine, a water pump is subject to wear and tear that even the regular repair and maintenance practices cannot prevent. Some of the main advantages of replacing a water pump include:

  • You will have a consistent water supply
  • Efficient use of water
  • Guarantee of clean and safe water for home use
  • A long lasting solution to regular water pump breakdowns


It is every homeowner’s hope that the water pump will last for a very long time after installation. However, that is not always the case as many physical factors are involved. The interior parts of a water pump are subject to wear and tear thereby causing a shortage or complete water lose.

Fortunately, you can always replace the water pump alone. This guide has provided you with the basic steps of how to replace a water pump.

The main trick is to do enough preparation; gather the tools and materials needed for the project in advance, determine the type of water pump that you want to install and always have a helping hand for more complicated water pumps.