How to plan a grey water system?

  • Calculate the number of members in your family 

    • For eg., 3

  • Estimated daily Grey Water flows for each family member as follows

    •  Showers, bathtubs, and wash basins : 25 gallons/day/member

      • For eg., 25 X 3 = 75 gallons/day

    • Clothes washer: 15 gallons/day /member

      • For eg., 15 X 3 = 45 gallons/day

  • Multiply the number of family members by the estimated grey water flow.

    • For the above eg., 75 + 45 = 120 gallons of grey water per day for the whole family