40-gallon water tanks force trucks to stop serving mid-shift

Health codes require food trucks to carry potable water for handwashing, food prep, and three-compartment sink warewashing, but practical onboard tank capacity maxes out around 30-50 gallons due to weight limits and chassis space. A busy truck doing 150+ transactions/day can exhaust its fresh water supply in 4-5 hours, forcing the operator to either stop serving during peak lunch rush to refill at a commissary (often 20-40 minutes round trip), or risk a health code violation by continuing to serve without adequate handwashing water. Wastewater tanks must be 50% larger than freshwater tanks per most codes, compounding the weight and space problem. The operator loses $200-$500 in peak-hour revenue per refill trip. This persists because truck chassis weight ratings cap total vehicle weight (typically 14,000-16,000 lbs GVWR for common trucks), and water weighs 8.34 lbs/gallon — so every additional 10 gallons of fresh water plus the required 15-gallon wastewater overflow adds over 200 lbs, competing directly with food inventory, equipment, and propane for the remaining weight budget.