Calculadora de Unidades de Accesorio — Fórmula
## Fixture Unit Method
Each plumbing fixture is assigned a unit value based on its flow demand. The total WSFU determines minimum pipe size per code tables. A quick estimate for peak demand in GPM uses the Hunter curve approximation: **GPM = 5 x sqrt(WSFU)**.
Each plumbing fixture is assigned a unit value based on its flow demand. The total WSFU determines minimum pipe size per code tables. A quick estimate for peak demand in GPM uses the Hunter curve approximation: **GPM = 5 x sqrt(WSFU)**.
Ejemplo Resuelto
2 toilets, 3 sinks, 2 showers, 1 dishwasher, 1 washer.
- Toilets: 2 x 2.5 = 5
- Sinks: 3 x 1 = 3
- Showers: 2 x 2 = 4
- Dishwasher: 1 x 1.5 = 1.5
- Washer: 1 x 2 = 2
- Total = 15.5 WSFU
- Peak GPM = 5 x sqrt(15.5) = 19.7 GPM