power washer wash car
Most commercial car wash machines typically operate at pressures ranging from 1,200 to 3,000 PSI (pounds per square inch). A pressure of 1,200 PSI is adequate for gentle cleaning and is often used for delicate surfaces or vehicles that only require light washing. In contrast, pressures exceeding 2,500 PSI are suitable for heavy-duty cleaning, making them ideal for trucks, SUVs, or vehicles that frequently traverse muddy terrains.
car wash machine pressure

Coagulants, such as alum (aluminum sulfate) and ferric chloride, are also employed in sewage treatment. These chemicals assist in the removal of suspended solids, colloidal particles, and turbidity from wastewater. When added to the treatment process, coagulants promote the aggregation of small particles into larger flocs, which can be more easily removed through sedimentation. This process is particularly important in primary treatment phases, where physical separation of solids occurs.
chemical used in sewage treatment plant
