Description

how to figure out what size pump you need ?

**How to Figure Out What Size Pump You Need?**

Choosing the right pool pump size is crucial to ensure efficient and effective pool operation. A pump that’s too small won’t be able to circulate the water properly, while a pump that’s too large will waste energy and increase your electricity bill. So, how do you determine what size pump you need?

**Calculating Pool Volume**

The first step in determining the right pump size is to calculate your pool volume. You can use online calculators or formulas to do this. For example, for a rectangular pool, you can use the formula: Volume = Length x Width x Average Depth x 7.5.

**Surface Area and Flow Rate**

Once you have your pool volume, you need to consider the surface area and flow rate. Cartridge filters typically require 0.3 to 0.35 GPM per square foot of surface area. For example, a 100 square feet surface area would require 32-38 GPM.

**Turnover Rate and Pipe Size**

The turnover rate is another important factor to consider. This refers to the time it takes for the pump to circulate the entire pool volume. A general rule of thumb is to aim for an 8-10 hour turnover rate. You’ll also need to consider the pipe size, as this will affect the maximum flow rate.

**Friction Loss and Pipe Length**

Friction loss is another factor that can affect pump performance. This is calculated by dividing the total length of pipe by 100 and multiplying it by the friction loss factor.

**Online Calculators and Resources**

Don’t want to do all the calculations yourself? Don’t worry, there are many online resources and calculators that can help you determine the right pump size for your pool. Here are a few:

* [Pool Research Pool Pump Size Calculator](https://poolresearch.com/pump-size-calculator)
* [Leslie’s Pool Supplies Pool Pump Sizing 101](https://lesliespool.com/blog/pool-pump-sizing-101.html)
* [Pumps & Systems Pump Sizing 101](https://www.pumpsandsystems.com/pump-sizing-101)
* [GloboPool Pool Pump Size Calculator](https://globopool.com/pump-size-calculator)

**Conclusion**

Choosing the right pool pump size may seem like a daunting task, but by considering factors such as pool volume, surface area, flow rate, turnover rate, pipe size, and friction loss, you can make an informed decision. Don’t forget to check out online resources and calculators to help you determine the perfect pump size for your pool. Happy calculating!