Pool Fill Time Calculator
Avoid the flood: Find out exactly when to turn off the hose. This tool calculates your pool's fill duration based on your home's unique flow rate.
How to Calculate Your Hose GPM
To get an accurate estimate, you first need to find your **Gallons Per Minute (GPM)**. Take a standard 5-gallon bucket and time how long it takes to fill it with your garden hose at full blast.
Example: If it takes 60 seconds to fill a 5-gallon bucket, your flow rate is **5 GPM**. Most homes range between 5 and 10 GPM.
Factors Affecting Fill Time
The diameter of your hose (5/8" vs 3/4"), your water pressure (PSI), and even other faucets running in the house will affect your fill time. If your pool is being filled by a water truck, the rate is much faster (usually 1 hour or less).
Pro Tip: If you are refilling a significant portion of the pool, you will need to re-balance all chemicals. Start by calculating your drain amount with our CYA Drain & Refill Tool.
Frequently Asked Questions
Is it cheaper to fill a pool with a hose or a truck?
Usually, a garden hose is significantly cheaper than a water truck service, although it takes much longer (days vs hours). Check your local water/sewer rates to be sure.