Perc Test

• UM extension on Septic Tanks [1]
• 10-60 minutes per inch (MPI) is ideal. Expect higher end for clay soils. [2]
• Leach field size table based on MPI [3]
• Water efficient home - https://extension.psu.edu/water-system-planning-estimating-water-needs - 50-100 gpd per person is the standard. Seed Eco-home cuts that down by a factor of 3.
  • Dishwasher saves 13 gallons per day [4]
  • Washer saves 10 gallons per wash
  • Bricor UltraMaxx is 0,56 gpm instead of 2.5 gpm [5] saves 20-5=15 gallons per person per day [6]
• S