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How To Find the Right Size Pool Pump

Gzfenlin swimming pool pump suppliers as the heart of your swimming pool, the right size pool pump is responsible for circulating water in your pool through the filtration system. When choosing a pool pump, knowing a little about the right size pump for your pool can save you a lot of time and money. Check out this step-by-step guide about how to find the correctly sized pump for your pool.

 

A pool pump is a crucial component to your filtration system. A common misconception when it comes to the horsepower on a pool pump is that the higher the horsepower, the better it is. This is definitely not the case. Having a properly sized pump helps avoid excess wear on your other pool equipment and also saves on electricity usage.

 

There are a few things to consider and evaluate before purchasing a pool pump. Keep in mind, every pool is different, so the proper research and calculation will lead you in the right path. Read along and we’ll cover everything you need to know before you make the plunge and purchase the right pool pump.

 

Types of Pool Pumps

As you may be aware, there are several types of pool pumps–mainly when it comes to the speed: low, medium, and high. These speeds are important to consider because they regulate your pump usage and power consumption.

 

Single Speed Pumps

Single speed pumps are considered the most popular types of pool pumps. With a single speed pump, the motor spins the impeller at only one speed according to the horsepower of the motor. Single speed pumps tend to use a lot of power when they run for long periods of time and may not be the most ideal choice when looking for an energy efficient option. Also, the state of California, has prohibited the use of single speed pumps for pool owners–mainly to help save on electricity usage.

 

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Dual Speed Pumps

Dual speed pumps have both a low and high option. When running at high, the dual speed pump runs exactly like a single speed pump. The difference is that there is a low speed option that allows for more flexibility in usage. Dual speed pumps are slightly more energy efficient than a single speed pump because you can set the pump to run on low during peak usage hours and when the pool is not being used.

 

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Variable Speed Pumps

Considered the most energy efficient pump, variable speed pumps also come with a higher price tag. The unique feature that variable speed pumps can boast about is that they come equipped with a permanent magnetic motor, PMM, which does not require electricity and can be digitally regulated to any speed. Variable speed pumps produce less friction, which means that this pump is energy efficient, quieter, and longer lasting.

 

Determine Your Desired Turnover Time

The first thing to determine is the desired turnover time, or in layman terms, how long it takes for the pool pump to cycle all of the swimming pool’s water completely. An ideal turnover time is 8-10 hours.

 

Use this formula to determine your turnover rate:

 

Pool Volume in Gallons ÷ Turnover Rate in Minutes = Flow Rate

 

For example: If a pool is 35,000 gallons and we want a turnover rate of 8 hours, our equation would look like this: 35,000 / 8 / 60 = 73 GPM (gallons per minute)

 

According to the table above, we need a pump with a 73 GPM rating in order to achieve an 8 hour turnover time. Even though we figured out how much water needs to be pumped, the water can only flow at the maximum rate if the plumbing is big enough to accommodate it.

Calculate Maximum Flow Rate

The size of your pool’s pipes determines the maximum flow rate.

 

Count the number of intake lines for your pool and refer to the common pipe sizes below.

 

For each 1.5-inch intake line, the maximum flow rate is 42 GPM

For each 2-inch intake line, the maximum flow rate is 73 GPM

For each 2.5-inch intake line, the maximum flow rate is 120 GPM

For each 3-inch intake line, the maximum flow rate is 160 GPM

 

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