If you already own or are about to own a swimming pool, it’s crucial to learn how to choose the right pool pump. This article will guide you in selecting a pump that suits your pool, ensuring an optimal swimming pool experience.

What Is Pool Pump

The pool water pump is one of the most crucial pieces of equipment in a swimming pool, acting much like the heart in the human body. Its primary function is to provide the power for water circulation and ensure the even distribution of water flow within the pool. Pump plays a vital role in maintaining water quality, preventing stagnation, and ensuring the clarity and safety of the pool for swimming.

pool pump circulation system diagram

figure source: www.poolset.com.au

Pool Pump Plays an Imporant Role in a Swimming Pool

1. Water Circulation

The water pump works by drawing water from the pool through the intake port, propelling it through the filtration system, and returning the filtered water back to the pool. This continuous circulation helps maintain water movement, ensuring that all areas of the pool receive treated water.     

2. Filtration

Pool pump features a filter basket designed to catch debris, dirt, leaves, and other impurities from the water. This prevents them from circulating back into the pool, playing a crucial role in maintaining clear and hygienic water quality.

3.Chemical Distribution

Typically, to maintain pool water balance, chemical substances like chlorine or other disinfectants are added to the pool. The pool pump assists in evenly distributing these chemicals throughout the entire pool, ensuring effective water treatment

4. Preventing Algae and Bacterial Growth

Continuous circulation and water filtration help prevent the growth of algae and harmful bacteria, keeping the water fresh and pool maintenance more straightforward.

Different Types Of Pool Pump 

Different types of pool pumps serve distinct functions. When purchasing, consider safety, practicality, cost-effectiveness, and eco-friendliness, tailored to your pool’s needs. There are two main types of pool pumps.

I. Classification Based on the Number of Impellers:

  • Single-Stage Pump:A pump with only one impeller on the pump shaft.
  • Multi-Stage Pump:A pump with two or more impellers on the pump shaft. In this case, the total head of the pump is the sum of the heads generated by each impeller.

For residential swimming pools, single-stage pumps are commonly chosen. Multi-stage pumps are typically used in larger pools, water parks, and commercial swimming pool settings.

Ⅱ.Classification Based on Operating Speed:

  • Single-Speed Pump:Operates at a fixed, unchangeable speed. Typically, it comes with lower upfront costs but may have lower energy efficiency compared to variable-speed pumps.
  • Dual-Speed Pump:Has two preset speeds, usually high and low. Offers flexibility in adjusting water flow and is more energy-efficient compared to single-speed pumps.
  • Variable-Speed Pump:The pump’s speed can be adjusted to different levels, usually offering higher energy efficiency. Long-term usage may lead to reduced operating costs.

The choice of pool pump type depends on factors such as pool size, required water flow, energy efficiency goals, and budget. Variable-speed pumps are often recommended as they come with energy-saving features and can be customized based on specific pool requirements.


Components of A Pool Pump

A swimming pool pump is a sophisticated device composed of several key components that work together to achieve water circulation and filtration. Main components of a pool pump include:

pool pump components

  • Pump Cover:

The pump cover is typically removable, allowing access to the strainer basket for cleaning and maintenance. It also aids in sealing the pump to prevent leaks.

  • Strainer Basket:

Positioned in the pump’s inlet system, the strainer basket captures large debris like leaves and hair, preventing them from entering the pump and causing damage.

  • Pump Body:

The main body of the water pump, providing support and connection to the frame with installed bearings.

  • Impeller:

The impeller is a rotating component with blades. As it spins, it generates centrifugal force, drawing water into the pump and propelling it through the pump body.

  • Seals and Gaskets:

Seals and gaskets effectively prevent water leakage from the pump, ensuring its sealing integrity to maintain efficiency.

  • Pump Shaft:

Connected via a coupling to the motor, the pump shaft transfers the motor’s torque to the impeller. It is a crucial component for transmitting mechanical energy.

  • Motor:

The motor serves as the power source driving the entire pump. It provides the energy needed for the mechanical components of the pump to operate.

    • Inlet and Outlet Ports:

    The inlet port draws water from the pool into the pump, while the outlet port returns the filtered water to the pool. These ports are connected to the pool’s plumbing system.

    Understanding these components is essential for maintaining and troubleshooting a pool pump, ensuring its optimal performance in circulating and filtering pool water.

    How Much Does A Pool Pump Cost?

    Costs of a pool pump largely depend on the pool’s capacity, as it directly correlates with the required power of the pump. Additionally, factors such as pool type, operational hours, and labor costs need to be considered.


    Variable-speed pumps are more expensive than single-speed pumps, but in the long run, they offer higher energy efficiency, leading to cost savings in operational expenses. Speck pumps provides the best variable speed pumps.


    To select a pump that suits your pool size, it’s crucial to first understand your pool’s capacity. If the pump’s power is too low for the pool, maintaining the pool’s chemical balance might be challenging. On the other hand, a pump with excessive power can lead to overworking the impeller, potentially causing wear and tear.

    You can calculate the pool capacity (in cubic feet) using the following formulas (in feet):

    • Rectangular Pool: Length x Width x Average Depth = Total Capacity (cubic feet)
    • Circular Pool: Diameter x Diameter x Average Depth x 0.79 = Total Capacity (cubic feet)
    • Oval Pool: Maximum Length x Maximum Width x Average Depth x 0.79 = Total Capacity (cubic feet)
    • Irregular Shape: Surface Area x Average Depth = Total Capacity (cubic feet)
    Pool Capacity(gallons) Pool Pump Power(HP) Cost
    up to 10000 0.5-1 $200-$600
    10000-20000 1-1.5 $300-$800
    20000-40000 1.5-2 $400-$1000
    over 40000 2 or more $500-$1500or higher


    For example, for a rectangular pool with dimensions of 15 x 25 feet and an average depth of 5 feet:

    Using the formula: 15 × 25 × 5 = 1,875 cubic feet

    Water volume capacity: 1,875 x 7.5 = 14,062 gallons

    Assuming the pool water needs to be circulated once a day, the daily turnover rate would be: 14,062 × 2 = 28,124 gallons

    Referring to the table, it is determined that this pool requires a pool pump with a minimum of 1.5 horsepower, costing between $400 and $1000.

    3. Pool Types:

    The type of swimming pool also influences the choice of pool pump. Different pool types have varying water circulation needs, and factors like additional features can impact pump selection. Here are some considerations for different pool types:

    • In-Ground vs. Above-Ground Pools:

    Choose a pool pump based on the pool’s capacity, whether it’s in-ground or above-ground.

    • Additional Water Features:

    Pools with features like waterfalls, spa jets, or fountains may require a pump with higher horsepower to provide the necessary flow.

    • Saltwater Pools:

    Select a pool pump made of corrosion-resistant materials for saltwater pools. These pumps may come at a higher cost.

    When choosing a pool pump, it’s advisable to consult with pool professionals. They can assess the specific characteristics of your pool, consider additional features, and recommend the most suitable pump for efficient water circulation.


    4. Labor Costs:

    The installation of a new pool pump or the replacement of an existing one can be influenced by various factors, including the region, local labor rates, the complexity of the installation, and whether there are any additional components or features involved.

    How To Save On Pool Pump Costs

    glass jar savings 

    1.Consult with Professionals:

       Especially for first-time pool construction, it’s advisable to consult with professionals to choose the most suitable pool pump.

    2.Opt for Variable-Speed Pumps:

       Although they may have a higher upfront cost compared to single-speed pumps,    variable-speed pumps allow you to adjust the pump’s speed as needed, saving on energy costs in the long run.

    3.Optimize Pump Runtime:

       Adjust the pool pump’s operating time based on needs, optimizing energy consumption and saving on operational costs.

    4.Regularly Clean the Pump:

       Debris buildup in the pool pump’s strainer basket and impeller can reduce operational efficiency, leading to increased energy expenses. Regular cleaning is essential.

    5.Consider Using a Pool Cover:

        Prevent large debris such as leaves and branches from falling into the pool by using a pool cover. This helps maintain the pool pump’s efficient operation from the source, ultimately saving on costs.


    How To Install A Pool Pump

    Installation of a pool pump requires careful attention to many details to ensure the pool’s normal operation and long-term use.

    Here are some considerations:

    • Adhere to local laws and regulations, including electrical requirements and safety standards. For example, pool pumps with a power greater than 1.0 THP must be variable-speed pumps.
    • If you are installing the pool pump yourself, follow the manufacturer’s installation guide. It’s advisable to seek guidance from professionals or technical experts during the installation process.
    • Consider installing a variable-speed pump to save energy and enhance efficiency.

    Installation Steps:

    If you decide to install a pool pump by yourself, you can follow these steps:

    1.Choose a well-ventilated and level ground based on the pool layout.

    2.Check the electrical accessibility in the surroundings and ensure compliance with local electrical safety standards.

    3.Install the pump by connecting the pump body to the water source and the pool water return pipeline.

    4.Connect the pump’s power line to the power source, ensuring a secure connection. If necessary, hire a professional electrician to handle the electrical connections.

    5.Connect the pipes by attaching the inlet and outlet pipes to the pump body.

    6.Set the pump’s flow rate and operating time based on the pool size and requirements.

    7.Test the pump operation by starting it and checking if the water flow is normal.

    8.Monitor the pool pump’s performance regularly after it starts running. Check the filter basket and pump body to ensure they remain clean.

    9.Install a protective cover for the pool pump to prevent damage due to wind and rain, ensuring optimal efficiency.


    Several Cover Ideas:

    pool pump cover

    Pool pump cover should be ensure proper ventilation and access for maintenance, here are some ideas:

    1.Install Solar Panels: Effectively harness solar energy to convert it into kinetic energy, achieving energy savings.

    2.Install a Pool Pump Shelter: A small shelter can provide protection for the pool pump against wind and rain, reducing the impact of rainwater on the pump body.

    3.Fence Cover: Installing a fence around the pool pump not only allows for ventilation but also makes maintenance more convenient.

    4.Place Landscape Planters that Blend with the Pool Style: Create an attractive scenery by placing landscape planters that seamlessly integrate with the pool’s style.

    How To Maintain A Pool Pump

    A clean and well-maintained pool pump is a crucial step in enhancing pool performance. In the following steps, I’ll guide you on how to clean and maintain your pool pump.

    How to Wash? Step by Step Guide

    .Cleaning the Strainer Basket:

    The pool strainer basket effectively traps large debris from entering the pool, ensuring the pump’s efficiency and maintaining pool water cleanliness.

    1.Turn off the pool pump.

    2.Open the pool pump cover.

    3.Carefully remove the pool strainer basket and clean it thoroughly.

    4.Rinse the strainer basket with water.

    5.Inspect the strainer basket for any damage.

    6.Place the strainer basket back in its original position.

    .Cleaning the Impeller:

    Some small debris may bypass the strainer basket and accumulate, potentially causing the impeller to get stuck and reducing the efficiency of the pool pump. Therefore, regularly checking and cleaning the impeller is essential.

    1.Ensure the pool pump is turned off.

    2.Locate the impeller at the bottom of the pool pump.

    3.Remove the impeller with guidance from the user manual or a professional.

    4.Clean any debris or fragments from the impeller.

    5.Reinstall the impeller onto the pool pump.

    III. Reassemble all components:

    Fill the pool pump with water, and then restart the pool pump for normal operation.


    How To Replace A Pool Pump

    If you need to replace your pool pump, please follow these steps:

    1.Turn off the power. This is a crucial first step for safety.

    2.Close the valves on both sides of the pool pump to prevent water flow.

    3.Use a wrench to loosen the water pipes connected to the suction and discharge ports of the pool pump.

    4.Remove the old pool pump.

    5.Prepare the new pool pump. If the model and size are the same, install it directly. If there are changes in size, adjust the pipe distance accordingly based on the pump’s size.

    6.Connect the pipes, attaching them to the pump’s inlet and outlet.

    7.Connect the power lines, ensuring a secure connection.

    8.Fill the pool pump with water.

    9.Set the pump’s flow rate and operating time.

    10.Power on and test the new pool pump.

    11.Monitor the operation of the pool pump to ensure there are no issues.



    By choosing and using the pool pump correctly, you can ensure crystal-clear pool water, providing the ultimate swimming pool experience while effectively saving on energy costs. We hope this guide proves helpful to you in selecting and maintaining your pool pump.


    1.How Long Should A Pool Pump Run?

    The operating time of the pool pump varies based on factors such as pool size and climate temperature. Larger pools or regions with warmer climates may necessitate a longer runtime for the pool pump. For most pools, we recommend a daily runtime of approximately 8 hours.

    2.How To Increase Pool Pump Pressure?

    1.Check if the water level inside the pool pump is too low. Use a hose to fill the pump with water.

    2.Inspect whether the pool pump’s filter basket is clogged with debris. Clean the filter basket.

    3.Examine the water pipes for any leaks. Damaged pipes can cause a reduction in pump pressure; replace the pipes if necessary.


    3.How To Do Pool Pump Calculate?

    You can calculate the pool capacity (in cubic feet) using the following formulas (in feet):

    • Rectangular Pool: Length x Width x Average Depth = Total Capacity (cubic feet)
    • Circular Pool: Diameter x Diameter x Average Depth x 0.79 = Total Capacity (cubic feet)
    • Oval Pool: Maximum Length x Maximum Width x Average Depth x 0.79 = Total Capacity (cubic feet)
    • Irregular Shape: Surface Area x Average Depth = Total Capacity (cubic feet)

    4.What Size Pool Pump Do I Need?

    The following table is a reference guide for selecting a pool pump. It is advisable to consult with professionals before purchasing a pool pump, as they can provide recommendations based on your specific needs and additional features.

    Pool Capacity(gallons) Pool Pump Power(HP)
    up to 10000 0.5-1
    10000-20000 1-1.5
    20000-40000 1.5-2
    over 40000 2 or more