Reasons Why You May Want To Run Your Pool Pump 24 Hours A Day

Tips When Running Your Pool

Pool pumps are considered as the swimming pool circulation system’s heart. It sucks the water from the pool with the main drain and skimmer then pushes it out through the filter.

Afterward, it returns the water to the pool using the main returns that keep it clear and clean.

Is it wrong to run your pool pump 24 hours a day? No. It is ideal for pool pumps to run 24 hours a day. But since it will be costly to do so, most pool owners only run their pool pumps for 12 hours a day.

I will explain other options for those who want to cut energy costs for running a pool pump. And the best time to run a pool pump will be tackled in the latter part of the article.

How Long To Run Pool Pump In A Day?

In general, it is a good option for a pool pump to run 12 hours a day, and it is only if your pool pump has an average turnover rate of around 8 to 12 hours.

Meaning your pool water’s total volume will run through the filter around 2 to 3 times every 24 hours. The water must turn over at least once daily for those maintaining a residential pool.

Knowing this, you will be able to decide whether to run your pool pump 12 hours a day or less.

To be more specific, you can use the equation below:

(Pool Volume / Filtration Rate) = Hours of 1 Turnover.

You can compute the Pool Volume by multiplying the width and length by the average depth.

Afterward, multiply it by the standard multiplier for the shape of your pool 5.9 for other shapes and 7.5 for squares or rectangles).

Here is an example:

A rectangular pool with a 20×40 pool with an average of 5ft.

7.5 x 20 x 40 x 5.5 = 33,000

Now for the Filtration Rate, you should determine the pool pump’s flow rate, including the resistance to flow in your system’s plumbing.

Take note that bigger pools and pools with water features have more resistance than the standard. Aside from that, the manufacturer of your pool pump should show the flow rate of your pump.

On average, a 1 HP pool pump can pump 50 gallons every minute, 3,000 every hour.

Here is how you can compute the Turnover Rate:

Pool Volume / Filtration Rate = Hours for 1 Turnover

33,000 / 3,000 = 11

One turnover may take 11 hours, close to 12 hours running a pool pump a day.

The solution discussed earlier means that the recommended time for running a pool pump may also depend on the size of your pool and your pump’s capacity.

The Best Time To Run A Pool Pump

Most pool owners ask if it is best to run a pool pump day or night.

While some people prefer to run their pump at night, doing so is highly ineffective. To put it simply, running a pool pump at night will only cause you a lot of money.

On the other hand, running your pool pump can help you save money from prolonged use during the day. It also prevents algae growth in your pool, as sunlight is among the factors that allow them to thrive.

When the pool is exposed to sunlight, it is best to run chlorine in your pool filtrating system. Chlorine helps to keep algae from growing in your pool.

Some pool owners are tempted to run their pool pump at night because it is cheaper.

However, you have to keep your pump running for an hour daily per 10 degrees of temperature, which should be during the day.

But there is an exception. It will help if you run your pool pump at night when chemical treatment is done at your pool’s water, such as algae clean-up.

Ways To Save Money When Running Pool Pump

If you want to save money by reducing energy costs when running a pool pump, you should own a pool timer.

This device will allow you to run your pump in the right amount of time.

Another way to save pool maintenance costs when running a pool pump is to get the right pump.

According to pool experts, every pool pump fits a particular size and shape of a pool. For this reason, you should consider some factors when buying a pool pump.

Below are some of the things you should note before making a purchase:

  1. Plumbing – You should consider the layout of your pool plumbing, other devices, and distances. Ask for the original installer for these things to avoid future problems.

  2. Pump efficiency Usually, pumps utilize 70% of the energy-related with pool maintenance cost. For this reason, choosing an energy-efficient pump helps to cut a considerable portion of the overall cost.

  3. Pool volume – You also need to consider the size of your pool as well as its shape to determine the volume of pool water that the pump will process.

  4. Noise – Also, consider the sound produced by your pool pump. If possible, buy a stealth pool pump, efficient and noise-free. If you are maintaining a residential pool, your neighbors will thank you later.


To conclude, running your pool pump for 24 hours is not a bad thing, and it is ideal to do so.

But since it can significantly increase pool maintenance costs, we suggest only running your pump for 12 hours or less, depending on the size of your pool and your pump’s efficiency.

Make sure to use a pool timer to keep up with how long the pump is running. This device can help you save money by allowing you to monitor the pump’s running time.

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