I suspect the capacity of 10,000 gallons a day is based on an 8-hour workday for their manufacturing employees. Workweek: Monday - Friday ... 5 days a week. Fluid manufacturing: Closed on weekends.
I do not believe they are trying to run multiple 8-hour shifts extending into the nighttime hours (like some factories might do).
Especially if the $4 Million in sales is indicative that they are not selling anywhere near the 10,000 gallons daily capacity.