Sewage Flow Rate Calculator

Estimate daily sewage discharge from a building based on occupancy and per-capita wastewater generation.

people
gal/day

Average Daily Flow

4,000 gal/day

Peak Hourly Flow417 gal/hr
Peak Minute Flow6.9 GPM

Average Daily Flow vs Number of Occupants

सूत्र देखें →

सूत्र

## Sewage Flow Estimation **Average Daily Flow = Occupants x Per Capita GPD** **Peak Flow = Average / 24 x Peak Factor** Residential per-capita wastewater is typically 60 to 100 gallons per day. The peak-hour factor (2 to 4 for residential, up to 5 for commercial) accounts for the morning and evening surges.

हल किया गया उदाहरण

50 occupants, 80 gal/day each, peak factor 2.5.

  1. 01Avg daily = 50 x 80 = 4,000 gal/day
  2. 02Avg hourly = 4,000 / 24 = 167 gal/hr
  3. 03Peak hourly = 167 x 2.5 = 417 gal/hr
  4. 04Peak GPM = 417 / 60 = 6.9 GPM