A clean and safe pool is crucial for a great swimming experience, and a well-functioning pool pump plays a significant role in maintaining pool water cleanliness. If you own a 25000-gallon pool, you need to choose the right size of pump to ensure proper water circulation and filtration. Here’s how to determine the pump size you need for your 25000-gallon pool.
Table of Contents
1. Determine the number of gallons to be pumped per hour
To calculate the number of gallons to be pumped per hour for your 25000-gallon pool, you need to decide the turnover time. The turnover time is the amount of time it takes for the pump to circulate and filter the entire volume of water in the pool. The industry standard recommends a turnover time between 8-10 hours. For a 25000-gallon pool, we will use a turnover time of 8 hours.
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To calculate the gallons per hour required, divide the total number of gallons of water in your pool by 8. So, for a 25000 gallon pool:
25,000 gallons ÷ 8 hours = 3,125 gallons per hour
2. Convert gallons per hour to gallons per minute (GPM)
Most pumps are rated in gallons per minute (GPM), so it’s essential to convert the gallons per hour to gallons per minute by dividing by 60, which represents the number of minutes in an hour.
So, a 25000-gallon pool requires a pump with a flow rate of 52 GPM for a turnover of 8 hours.
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If you prefer a turnover time of 10 hours, you can adjust the calculation accordingly. Divide the gallons in the pool by 10 and then convert gallons per hour to gallons per minute by dividing by 60. For a 25000-gallon pool with a turnover time of 10 hours:
25,000 gallons ÷ 10 hours = 2,500 gallons per hour 2,500 gallons per hour ÷ 60 = 41.67 GPM
When you round off, you get 42 GPM.
So, for a 25000-gallon pool with a turnover time of 10 hours, you need a pump with a flow rate of 42 GPM.
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In conclusion, for a 25000-gallon pool, you need a pump with a flow rate of 52 GPM for a turnover time of 8 hours or 42 GPM for a turnover time of 10 hours. Make sure to choose a pump with sufficient horsepower to ensure it can handle the required flow rate for your pool size.
Once you have determined the flow rate of your pool in gallons per minute (GPM), you can use the tables provided in the link below to select a suitable pool pump model based on the manufacturer and horsepower (HP).
Choose a manufacturer and look for GPM obtained in table. To access the tables, simply click here. It’s important to note that pool pumps from different manufacturers come in varying flow rates (GPM) and horsepower (HP), so it’s important to choose a pump that is compatible with your specific pool requirements.
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