The Typhoon portable wash station is designed to make it easier for rental firms and plant operations to clean small equipment quickly and at minimal cost while complying with environmental standards. The Typhoon is automatic and requires no control panel. The pressure washer gun (attached to an overhead boom) gives 360 washing access from outside the wash rack. The built-in access ramp closes automatically, easily becoming a fourth wall to keep overspray on the rack and off the shop floor. The Typhoon installs and reinstalls in the area of one parking space and performs well on uneven ground because its grated sump pulls water from both ends at once. It needs no special plumbing, no special permits and the completely enclosed mechanism is heated so the wash water won’t freeze, even in winter temperatures.