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@samks123, the flow rate fraction schedule generally mimics the occupancy schedule. You would expect the peak domestic water flow for hours when the building is fully occupied and at reduced flow when the building is minimally occupied. For example an hourly water flow schedule for a typical office weekday: 0.05,0.05,0.05,0.05,0.05,0.10,0.25,0.70,0.90,0.90,0.90,0.90,0.90,0.90,0.90,0.90,0.80,0.65,0.50,0.35,0.20,0.10,0.05,0.05