What Is A Pool Pump

The pool pump is the heart of the swimming pool, providing the power for water circulation. For beginners or future pool owners, this article guides you on efficient pool pump usage.

How Does A Pool Pump Work

The pool pump’s motor provides power, driving the impeller to push pool water into the sand filter. After a series of filtration, sanitation, and heating (if applicable), it is returned to the pool.


How Long Should I Run Pool Pump

All the water in the pool must circulate through the filter at least once a day, known as turnover, a crucial factor in calculating pool pump runtime. Most single-speed pool pumps should run for a minimum of 8 hours each day. A rule of thumb is to run the single-speed pump for an additional hour for every 10°F increase in outside temperature.

Calculate pool capacity (GPH):

Rectangular pool: Length x Width x Average Depth x 7.5 = Total Capacity (GPH)

Circular pool: Diameter × Diameter × Average Depth × 0.79 × 7.5 = Total Capacity

Oval pool: Maximum Length × Maximum Width × Average Depth × 0.79 × 7.5 = Total Capacity

Irregular shape: Surface Area × Average Depth × 7.5 = Total Capacity

Once you have the pool capacity, if you want the pool to turn over three times a day, divide it by eight to determine the gallons per hour (GPH) needed. Since most pool pumps operate in gallons per minute (GPM), divide GPH by 60 to determine the gallons per minute needed for complete turnover. The final formula is:

Total Pool Capacity ÷ 8 ÷ 60 = Gallons/Minute

When Do I Run Pool Pump

There is no need to run the pool pump continuously, as it quickly adds to your electricity bill. So, when should you run the pool pump and for how long to achieve optimal performance?

The best time to run the pool pump depends on factors such as the current health of the pool water, chemicals in the pool, and the cost of running the pump. While there is no fixed duration for running the pool pump, there are significant benefits to running it at specific times during the day.

Let’s discuss the advantages of running the pool pump at different times.

Benefits of Running Your Pool Pump During the Day

Algae Prevention

Every pool owner dreads dealing with algae issues as they are challenging to clean and tend to worsen quickly, especially during summer. It’s well-known that sunlight acts as a catalyst for algae growth. Running the pool pump during the day disrupts stagnant water, hindering algae’s favorable conditions, thus maintaining the pool water’s health.

Filtering the Pool

Most people use the pool during the day, and running the pool pump while the pool is in use helps maintain clean and clear water. It filters out debris such as hair, skin flakes, oils, ensuring the pool remains in optimal condition for everyone.

Benefits of Running Your Pool Pump During At Night

Energy Savings

Running the pool pump at night helps avoid peak energy periods, reducing the operating costs of the pool pump. If you use a variable-speed pump, it will save you even more money.

Shock Protection

Shocking the pool involves pouring concentrated chlorine for disinfection. Daytime sunlight rapidly breaks down chlorine, and pool water, under sunlight, tends to evaporate, taking chlorine with it. It’s recommended to shock the pool at night. After adding a shock treatment, run the pool pump to quickly disperse it, enhancing the shock’s effectiveness.


There’s no standard duration for pool pump operation. If you need the pump running constantly, a variable-speed pump is ideal as it allows for set operating times. If you prefer specific timeframes, decide based on pool conditions for optimal pump efficiency.