ROI-Calculator
Use the Zurn Water Usage Calculator to calculate your water usage savings.
The table below provides an illustrative example of a typical office building setting with 100 occupants – 50 males and 50 females in a 260-day work year. The baseline calculation uses the EPA Act of 1992 for the gallons per flush/gallons per minute consumption.
Zurn Water Usage Calculations
Typical Water Conservation - Industrial & Commercial Application
| Flow Rate | Water Consumption (Total Gallons) | |||||
| Fixture | Frequency of Use4 | EPA Act2 (LEED Baseline3) |
Zurn EcoVantage Low Flow System |
EPA Act2 (LEED Baseline3) |
Zurn EcoVantage Low Flow System |
|
| Use | Savings | |||||
| Water Closet – Male | 1 | 1.6 gpf | 1.28 gpf | 80 | 64 | 16 |
| Urinal – Male | 2 | 1.0 gpf | 0.125 gpf | 100 | 12.5 | 87.5 |
| Water Closet – Female | 3 | 1.6 gpf | 1.28 gpf | 240 | 192 | 48 |
| Lavatory Faucets | 3 Minutes | 2.2 gpm | 0.5 gpm | 660 | 150 | 510 |
| Kitchen Faucets | 1 Minute | 2.2 gpm | 1.5 gpm | 220 | 150 | 70 |
| Showers | 5.3 Minutes | 2.5 gpm | 1.5 gpm | 331.28 | 198.77 | 132.51 |
| Daily Total | 1,631.25 | 767.25 | 864 | |||
| Yearly Total1 | 424,125 | 199,485 | 224,640 | |||
| Zurn EcoVantage Water Savings (Total Savings Over Baseline Criteria) |
52.97% |
|||||
1 Based on 100 occupants:50 male,50 female; estimating 25 persons showering daily with an annual 260 work days.
2 EPA Act, 1992
3 LEED Baseline for Water Efficiency is the EPA Act or the local building code/criteria,whichever criteria is more stringent.
4 Frequency of Use – Source - Handbook of Water Use and Conservations, WaterPlow Press 1992 by Amy Vickers
