Inputs
Add quantities of each fixture. Tool sums fixture units (FU) and computes peak demand via Hunter’s method.
| Fixture | FU each | Qty | Subtotal |
|---|
Hunter's method
- FU table per UPC/IPC; total FU summed across fixtures.
- Peak Q from Hunter curve (approximated piecewise here).
- Adjust by 0.7 for predominantly flush-tank, 1.4 for flush-valve dominated.
Results
Total FU—
Peak Q (Hunter)—
Daily demand (avg)—
Required pipe (V≤2 m/s)—