The low-pressure cleaning system, based on the standard water supply network, ensures low maintenance costs and is easy to operate. This system guarantees a proper and safe cleaning process without the need to increase working pressure. Accessories are significantly lighter and tailored to the parameters of the water supply network. The cleaning system is not complicated, and there is no need for additional water or air installations. Hoses are connected directly to the installation and hang over workstations or are rolled up on hangers or reels. Various types of low-pressure guns do not require additional lance or nozzle installations; they are ready to use. Ball valves made of stainless steel can be used for cleaning with water from the network.