**Sizing the Pump for Your Swimming Pool**

- Circular Pools: Diameter (ft.) x Diameter (ft.) x Average Depth (ft.) x 5.9 = Total pool capacity in gallons.
- Oval Pools: Length (ft.) x Width (ft.) x Average Depth (ft.) x 6.7 = Total pool capacity in gallons.
- Rectangular Pools: Length (ft.) x Width (ft.) x Average Depth (ft.)

## Considering this, how do you size a pump?

Use the pump flowrate calculation: **Divide the container volume by the length of time it took to fill up to get the flow rate**. 5 gallons / 1 minute = 5 gallons per minute. 5 gallons /30 seconds (0.5 minutes) = 10 gallons per minute.

**at least 1 square foot per 10,000 gallons pool capacity**.

## Just so, how much HP pump do I need?

Horsepower theoretically required for pumping water **equals the gallons per minute multiplied by the head in feet, and divided by 4.000** For power recommended, divide by 2000 instead of 4000.

## How many gallons per minute does a 1.5 HP pool pump?

For each 1.5 inch intake line, the maximum flow into the pump will be **42 gallons per minute** (GPM).

## Is 1 HP pool pump enough?

Pool owners often mistakenly believe if they choose a 2 HP pump over a 1 HP pump, they are getting double the performance. **This is simply not true**. In this scenario, you will get only about 15% more flow from the 2 HP model. But the amp draw of the larger pump will be significantly higher, raising your electric bill.

## What size pump do I need for a 24 above ground pool?

Round Above Ground Pool:

For pools up to 24 Ft Round, use a **1 HP pool pump**. For pools over 24 Ft Round, we recommend using a 1.5 HP pool pump.

## What is the flow rate of a 1.5 HP pool pump?

This product by Hayward is a 1.5hp pool pump designed to pump up to **90 GPM** in most pools. It requires less maintenance and is highly efficient.

## Can I replace a 1hp pool pump with a 1.5 HP?

So to answer the question, **yes, you can replace your 1hp pool pump with a 1.5hp pool pump, but only if your situation calls for it**. If you’ve determined that your current pump is too small for your pool, then we’ll suggest replacing it with a larger ECO pump like the Water TechniX Pump Alpha ECO.

## What size pump do I need for a 15000 gallon pool?

A 15,000-gallon pool needs about **20 GPM output** if we want to run it 24 hours per day. Most people run their pool on an 8-hour on/16-hour off (stagnant) cycle.