Compare calculators
Both calculators run independently β change the inputs on either side to compare results.
Water Usage
Greywater System Calculator
Estimates daily greywater production from showers, laundry, and sinks and projects how much can be recovered for irrigation. Useful when sizing a greywater system for a home or evaluating its payback potential.
Fill in the required fields to see your result.
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.
Key differences
| Greywater System Calculator | Greywater Recycling Calculator | |
|---|---|---|
| Category | Water Usage | Water Usage |
| Inputs required | 5 | 5 |
| Result | Daily Greywater Available for Reuse (gallons) | Weekly Greywater Available (gallons) |
| What it does | Estimates daily greywater production from showers, laundry, and sinks and projects how much can be recovered for irrigation. Useful when sizing a greywater system for a home or evaluating its payback potential. | 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. |