I am designing the hotwater fixtures for a project that uses lav sinks at 1 gpm and a kitchenette sink at 1.5 gpm. I input those values into the water use equipment peak flow rate value. I am seeing unreasonably high water usage for the building in the 300k gallons per year range, even with a flow fraction schedule of .008 for only 1 hour a day for 5 days a week. If i reduce the water equipment peak load to .1 and .15 the value starts to make sense.
What other parameters are affecting the water usage that is making this water usage value be too high when the water use equipment peak flow rate is what the design calls for? Is there an input for gallons per person that I am not seeing?
Thank you for your input.