Spray Valve and Aerator Savings Calculations
Savings Chart: Spray Valves |
| Annual Water Consumption | Old Valve | New Valve | Savings |
| Gallons | 63,000 | 27,000 | 36,000 |
| Water & Sewer Cost | $550 | $230 | $320/yr |
| Annual Water Heating | Old Valve | New Valve | Savings |
| Therms | 380 | 160 | 220 |
| Water Heating Cost | $280 | $120 | $160/yr |
| Annual Water, Sewer & Heating Savings | $480/yr |
- Savings Chart Assumptions:
- Base Flow: 3.00 gallons per minute (industry average)
- High-Efficiency Upgrade: 1.28 gallons per minute
- Days used per Year: 350 Days
- Hours used per Day: 1 Hour
- Energy Prices: City of Minneapolis, CenterPoint Energy
- Note: If you use your spray valve more days, for longer hours, or your current spray valve has a higher flow rate than 3.00 gal/min, you are likely to experience greater savings.
Savings Chart: Faucet Aerators |
| Annual Water Consumption | Old Aerator | New Aerator | Savings |
| Gallons | 26,000 | 5,000 | 21,000 |
| Water & Sewer Cost | $225 | $45 | $180/yr |
| Annual Water, Sewer & Heating Savings | $180/yr |
- Savings Chart Assumptions:
- Base Flow: 2.50 gallons per minute (average)
- High-Efficiency Upgrade: 0.5 gallons per minute
- Days used per Year: 350 Days
- Hours used per Day: .5 Hour
- Energy Prices: City of Minneapolis, CenterPoint Energy
- Note: If you use your faucet more days, for longer hours, or your current faucet has a higher flow rate than 2.50 gal/min, you are likely to experience greater savings.
Clean Energy Resource Teams