How Long Tto Run Pool Filter

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How To Calculate Pool Pump Run Fourth dimension

If you have a pool, then you almost assuredly accept a pool filter pump. But how long should y'all run the filter pump? Knowing that a pool pump filter organization is the second highest energy consumer during the summer, (subsequently Ac units), we want you to get the most bang for your buck.

Let'due south walk through a few mutual questions and and so breakdown the calculation backside finding the ideal pool filter pump run time for your swimming pool. We will show you lot the standard adding and a simple adding.

What does the pool filter pump exercise?

To empathise how much run fourth dimension you demand, information technology's important to know exactly what your filter pump does for your pool. The pool filter pump is the heart of your puddle filtration organization. It circulates h2o from the pool and returns it back, distributing pool chemicals and filtering your water. It is recommended that you "turnover" or broadcast all of your pool water through the puddle filter at least once throughout the mean solar day. This will ensure that the chemicals are evenly distributed and your water stays make clean and clear. If you don't broadcast the water, yous run the risk of algae growth and water remainder or clarity issues. This may pb to water that is dangerous for swimmers.

How many gallons of h2o are in my pool?

Before nosotros first, allow'south empathize how many gallons of water are in your pool. To notice your pool's book, use one of these piece of cake calculations. If you don't desire to calculate the puddle volume, take a quick look at the table on this helpful article: Calculating Pool Volume.

Foursquare and Rectangle Pools with Single Depth:

Length 10 Width x Depth x seven.five = Judge Book (Gallons)

Square and Rectangle Pools with Variable Depths:

Length x Width x Boilerplate Depth x 7.v = Gauge Volume (Gallons)

Average Depth: If the puddle has a shallow end and a deep cease, add the 2 depths together and divide by 2. (Case: The shallow end is 3' deep and the deep end is 8'. Using the Average Depth formula: (iii+viii)÷2=5.5' Average Depth.)

Round Pools:

3.14 10 Radius 10 Radius 10 Boilerplate Depth 10 vii.five = Volume (Gallons)

The Radius equals the diameter divided past 2. (Example: A 16' bore divided by 2 = viii' radius.)

Notation: Nigh round pools have a single depth.

Oval Pools:

three.fourteen x Length ten Width x .25 10 Boilerplate Depth x 7.5 = Approximate Volume (Gallons)

Kidney-Shaped Pool:

(A + B) x Length x 0.45 x Average Depth x vii.5 = Gauge Volume (Gallons)

("A" and
"B" = Width at two widest points)

Irregular Shaped or Free-Form Pools:

Longest Length x Widest Width x Average Depth x 5.nine = Judge Book (Gallons)

What is the Turnover Rate?

Now that we have the pool volume in gallons, nosotros can calculate the Turnover Charge per unit. The water menstruation of Flow Rate for all puddle filter pumps is measured in gallons per minute (GPM), versus gallons per hour (GPH). Here is how to become that number:

Full Pool Volume ÷ 8 = GPH

GPH ÷ sixty = GPM

Let'south do some math!

At present that we have gallons per minute (GPM) and pool book, we tin can calculate the run time. The math is unproblematic. For this example, permit'south say you accept a 20,000 gallon pool and the pool pump has a GPM rating of 40. Take hold of that calculator and just "sub-in" your measurements for these:

twoscore (GPM) Ten 60 (minutes per hour) = 2400 gallons per hour

20,000 (gallons) / 2400 (gallons per hour) = 8.iii hours

In this instance, the ideal puddle filter pump run time is eight.3 hours per twenty-four hours for ane circulation or "turnover" of water.

A simpler calculation

Hither is a simple rule of thumb for operating your unmarried-speed filter pump during the swim season when the temperatures and bather loads are loftier:

Run the circulation system one (1) 60 minutes for every 10°F of air temperature if a unmarried-speed filter pump is installed.

Example: If it is 100°F, the pump should run ten hours a day minimum. Of class, if the puddle is full of algae or a major weather event has occurred, the pump may demand to run 24-hours a twenty-four hour period.

Variable-Speed Pumps:

Variable-speed filter pumps should run longer, based upon the operating speed. Well-nigh puddle owners run their variable-speed pump 12 hours per solar day (3-4 hours on high speed for the pool cleaning system and 8-9 hours on depression speed for filtration). Go along in mind that sure water features — Salt Water Chlorine Generators and heaters — may not operate properly or even plough on if the filter pump is running on depression speed.

Any further questions?

If you lot accept any further questions most pool pumps, we're here to help! Stop by your local Leslie'south store to speak with one of our friendly pool experts.