Do you have design recommendations for highly variable flows?

The Fuji Clean system is designed to accommodate variable flows, in large part due to the recirculation airlift pump which has a built in mechanism for leveling variable flows to maximize retention time and treatment.  For extreme variable flows (such as in a church where there is a very large peak flow one day a week), we recommend the installation of a preceding settling tank large enough to accommodate total peak flow and then metering flow to the system throughout the unused periods.