A self-contained, environmentally friendly, cleaning system for construction plant and equipment. It’s composed of a wash bay with diamond tread ramps and 2200 mm high walls. The wash bay floor pan directs the dirty water and sludge from the equipment being cleaned to a Solids Collection tank at the rear of the wash bay. Inside the rear tank a float switch activates a diaphragm pump that delivers the dirty water into the Filtration Tank to commence the filter process. After the water, has been through the filter process a booster pump delivers the water again to your pressure washer. Through the filtering system it allows you to use the same water repeatedly. The filters inside the separator tank can be easy replaced guaranteeing an adequate filtering barrier.