Booster Pump: Everything You Need To Know

booster pump

A booster pump is a centrifugal pump driven by a no-load electric motor. It normally sits close to or at the fluid’s discharge point. The main reason for needing a booster pump is the installation of additional components into the hydraulic system. Especially when long tubes have been installed.

It is found in many applications. A household sit-down shower will typically have a water booster pump. This ensures good water pressure even when several fixtures are in use simultaneously. Similarly, they are also used on kidney dialysis equipment. They can be used to increase the pressure of carbon dioxide in soda fountain dispensers. Some car wash facilities use booster pumps in the recirculation circuits of water reclaim systems.

This article will discuss the need for a booster pump for your system.

What Is a Booster Pump?

Image by Engine With A Booster Pump

A booster pump is a device that works with water systems. If you have an irrigation system in your home, it probably uses it to get the water to your garden. It takes water from the source, pressurizes it, and sends it to your garden. When choosing this device, you have to consider the pipe’s flow rate and inside diameter. If you select a larger diameter pipe and lower flow rate, it may not work for you. You also have to ensure that the system has enough power to supply your garden with all the water it needs.

Fluids tend to flow from areas of high pressure to areas of low pressure. Therefore, they can move from one area to another. This type of device may be used to deliver water for irrigation or domestic use. Or it could be connected to a sewage system to move waste away from populated areas. It can also be used within industrial facilities where liquids need to be moved from one area to another.

A booster pump is often driven by an electric motor. Although some may use other forms of energy such as solar power. In some cases, such as with some household pumps, they may also be powered manually. The machine will contain a pumping mechanism that moves the fluid through pipes. And the size and strength of the pump need to be matched with the requirements of the application it will be used.

When and Where Is a Booster Pump Commonly Used?

A booster pump is a specific centrifugal pump designed to increase the pressure of an already pressurized fluid. It is typically used to improve the performance of a system. By increasing the flow rate or raising the discharge pressure of a pump.

The head and flow requirements of the system must be known to choose an appropriate booster pump. As they are only designed to boost existing head pressure, not create it.

A pressure regulator, also known as a pressure-reducing valve, controls the flow rate and pressure at which water enters your home. If you have high water pressure going into your house, installing a pressure-reducing valve to control that water pressure is best. This will prevent damage to your pipes and fixtures from excessive water pressure entering your home. However, sometimes you want more water than what the regulator allows into your house. In this case, you can install a booster pump to increase the overall water flow throughout your home.

You might need it if you have a low water pressure or poor flow due to one of these reasons: 

There are too many fixtures using the same supply line. Such as multiple faucets or toilets on the same line feeding a second story. Or another floor level that has a higher elevation than the main flooring. As well as long supply lines for running hot tubs or large sprinkler systems water supply lines are too small for.

A booster pump can be used in these situations:

  • Pressure-side pool cleaner needs more power due to large debris or dirt build-up around your pool.
  • Hot tubs with low water flow due to blocked or kinked pipes.
  • Water supply problems due to low water pressure from the main water supply.

How Does a Booster Pump Work?

Source: This Old House

Let’s start with a quick analogy. Imagine you have a garden hose and want to direct water to the top of your house. Attaching a nozzle at the end of the hose will increase water pressure, but now the water must travel through the long hose before reaching its destination.

The booster pump works by using an impeller and centrifugal force to increase the velocity of water, which can then be directed back into the pump’s housing with increased pressure. The impeller is made up of vanes which are turned by a motor at high speed. Where these vanes are attached to the housing, they curve outward and create pockets that fill with water on one side. As they turn around, they curve back inward and direct that water outwards at high velocity, which increases its pressure compared to its intake point.

A booster pump is often used when there’s already a working pump in place, but it’s not delivering enough water or maintaining adequate pressure for what’s needed. It can easily be integrated into an existing system, either being installed near an existing pump or even replacing it.

Here’s how it works:

A control panel sends signals from sensors around your property that measure current water pressure and flow rate. The sensors send this information back to the control panel and booster pump controller. The controller uses this information to determine if more pressure or flow is necessary and then adjusts the booster pump accordingly.

Why Do You Need a Booster Pump?

A booster pump is needed when the incoming water pressure does not meet the minimum pressure required for your system. Some systems require as little as 15 psi to function; however, most systems require at least 30 psi. It is most needed for low water pressure from the municipal water supply. This can be caused by insufficient water supply to your house or even too many household appliances using water at the same time. The result is low water pressure output from your municipal supply or well.

Most people don’t know what a booster pump is, but it can make your life so much easier.

They are used in these locations to increase the water flow pressure, allowing for better performance of the system.

They even have a place in the aquarium hobby!

For example, when you turn on the shower or open a tap, the water pressure drops, and you may find that the water flow from your tap or shower is not as strong as usual. It will increase the water pressure to give you a better flow.

Boosting the Water Pressure

The water pressure in your home is probably fine, but if it’s not up to par, you can take steps to increase the pressure with a booster pump.

If your water pressure is low, you can boost it by connecting a booster pump to your faucet. It’s attached to the faucet itself and installs easily using the existing spout. This approach works well if you have hard lines in good shape and are just low on pressure. You won’t need an expensive tankless system since this approach doesn’t use any additional plumbing.

Types and Uses of Booster Pumps


Booster pumps are devices that provide a means for increasing a pressure of a liquid. The term “booster pump” is used to refer to several different types of pumps that are used in different circumstances. These pumps are usually divided into two main categories, centrifugal and positive displacement pumps. They can be used in various applications, including hydronic water heating systems and cooling systems.

Although the term this can be applied to a number of different types of pumps, it is most commonly used to refer to a centrifugal pump. Centrifugal pumps work by using an impeller and casing to accelerate fluid outwards from the centre of rotation, allowing the fluid to reach higher velocities than it would otherwise be able to attain. By doing so, the pressure that the fluid will experience when it exits the centrifugal pump will be greater than it was at its inlet. A centrifugal pump may also have one or more vanes attached to its impeller or casing, further increasing the pressure experienced by the fluid as it leaves the pump.

Positive displacement pumps work by creating an open cavity into which fluid may flow; this cavity will then be reduced in size until all of its contents have been expelled from the cavity.

These pumps come in four different types:

  1. Circulator Pumps: These pumps are used in radiant heating and cooling systems. Some use a flexible hose, while others have replaceable cartridges that contain bearings.*
  2. Centrifugal Pumps: These pumps are used for large flow rates and low pressure. Centrifugal pumps can handle liquids with suspended solids.*
  3. Piston Pumps: These pumps are found on fire trucks, industrial cleaning equipment, and road striping equipment.*
  4. Positive Displacement Pumps: These pumps are used when high pressures are needed, such as in reverse osmosis and food processing applications.*

What Are Some Benefits of Having a Booster Pump?

booster pump
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Benefits of having a booster pump include:

More water pressure. If you have low water pressure, especially on your upper floors, a booster pump could help you solve this problem.

Lower energy costs. Booster pumps are more efficient than increasing the power of your existing pump because they help move water throughout your plumbing system more easily and effectively. This means that your existing pump can be on less often, saving you money on electricity.

Fewer maintenance requirements. Most booster pumps are very reliable and require little maintenance or upkeep over time.

Quiet operation. Booster pumps are usually much quieter than their larger counterparts, which helps create a quieter living environment overall.

How Much Does It Cost To Rent a Booster Pump?

Depending on the size of your tank and the number of people in your household, a booster pump installation will cost between $200 and $500. The pump itself costs around $100, while the remaining amount is used to cover the cost of labour, materials, and other expenses.

The cost of a booster pump installation also depends on the type of pump you’re renting. For example, a booster pump for water tanks costs around $200 to install, while a booster pump for showers costs $300.

Renting a booster pump can also save you money in the long run since most homeowners’ insurance policies don’t cover water damage caused by low water pressure. In addition to saving you money on your insurance premiums, it can also help prevent water damage to your home by ensuring there’s always enough pressure for your pipes.

If you have high water pressure but want to lower it, there are several ways without spending any money on pumps or other equipment. You can install an anti-siphon device to prevent backflow from happening in your home, which will reduce your monthly water bill while keeping your family safe.

Final Words

Booster pumps are at the heart of any piping system. They provide the pressure which makes water flow. Analog is powered by an electric motor that creates a magnetic field, which attracts a steel impeller toward it. The impeller rotates, moves air and water through the pump, and powers the impeller to move faster. This way, exhaust from the motor chamber can be redirected back into the motor chamber by placing a one-way check valve on its recirculation line. Often, installers will lose power to the pump during installation, and if any air gets into the system, it could prevent the pump from running properly. 

A good booster pump will come with an air-bleeder valve that allows you to quickly remove any air bubbles in your piping or recirculation loop by simply attaching a hose to it and opening up all your valves on your booster.

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