|
Description ID = Inner Diameter |
Rounded Values Used in U.S. Measure Field Estimations GOOD TO MEMORIZE ID = Inner Diameter Volume (Capacity) |
U.S. Measure Volume (Capacity) |
|---|---|---|
| One hose length | ||
| 1-1/2-in ID x 100 ft | 9 gal | 9.2 gal |
| 1-in ID x 100 ft | 4 gal | 4.1 gal |
| 3/4-in ID x 50 ft | 1 gal | 1.2 gal |
| 5/8-in ID x 50 ft | 1 gal | 0.8 gal |
| Weight | Weight | |
| 1 gal of water at 20°C | 8 lb | 8.3 lb |
| Pressure | Pressure | |
| 1 ft of water head (1 in2 column of water) | 0.5 psi | 0.434 psi |
| Atmospheric pressure | 15 psi @ sea level | 14.7 psi @ sea level |
| 1,000 ft increase in elevation | 0.5 psi decrease in atmospheric pressure | 0.5 psi decrease in atmospheric pressure |
| Draft (lift) | Draft (lift) | |
| 1 in of mercury | 1 ft | 1.134 ft |
| 1,000 ft increase in elevation | 1 ft loss | 1 ft loss |
| Maximum theoretical lift | 34 ft | 33.9 ft |
| Maximum attainable lift with new pump | 29 ft * | 29.4 ft |
| Maximum practical attainable lift | 22 ft | 22.4 ft |
* Pump lift varies with pump efficiency, which decreases proportionately to the hours of use.