Right Tank Cleaning Cycle: High Pressure Water activated by Foot Pedal Right Tank Manual Cleaning: Flow Through Brush & Wash Nozzle Left Tank Cleaning Cycle: Wash, Air Flush, Clean Rinse (100cc) and Air Flush URM-UG5000EW is Combo Ready: Left Tank only (requires "EP2" Series solvent Recycler) Diaphragm Pump Air Consumption: 2 CFM Output: 3 US Gal per minute at 85 PSI