Compare calculators
Both calculators run independently β change the inputs on either side to compare results.
Water Usage
Greywater Recycling Calculator
Estimate your household's weekly greywater output from showers, sinks, and laundry, then see how many gallons are available for garden irrigation or toilet flushing after system losses. Use it when sizing a greywater recycling setup.
Fill in the required fields to see your result.
Water Usage
Swimming Pool Water Calculator
Find out how many gallons your swimming pool holds and how much water evaporates monthly. Use it when filling a new pool, budgeting for water costs, or planning seasonal top-offs.
Fill in the required fields to see your result.
Key differences
| Greywater Recycling Calculator | Swimming Pool Water Calculator | |
|---|---|---|
| Category | Water Usage | Water Usage |
| Inputs required | 5 | 5 |
| Result | Weekly Greywater Available (gallons) | Total Annual Water (Fill + Maintenance) (gallons) |
| What it does | Estimate your household's weekly greywater output from showers, sinks, and laundry, then see how many gallons are available for garden irrigation or toilet flushing after system losses. Use it when sizing a greywater recycling setup. | Find out how many gallons your swimming pool holds and how much water evaporates monthly. Use it when filling a new pool, budgeting for water costs, or planning seasonal top-offs. |