Soft washing is a gentle cleaning method commonly used to safely remove organic matter like mildew, bacteria, algae, fungus, moss, lichens, dirt, grime, and spiderwebs using low pressure. It emerged as a safer alternative to power washing, which can cause damage due to high pressure. The process involves using dedicated pumps with low pressure to precisely measure and apply products like sodium hypochlorite and detergents.
Soft washing has evolved, with newer pumps generating more pressure than original electric diaphragm pumps. This allows solutions to be safely applied over greater distances with increased rinsing volume. Various pump types, including booster pumps, air diaphragm pumps, and gas-powered diaphragm pumps, contribute to its versatility. Metering systems enable precise measurement and mixing of sodium hypochlorite, detergent, and water. Color marking detergents indicate where the mixture has been sprayed, reducing usage while ensuring proper coverage.
Additional advancements include remote systems for switching between applying the solution and rinsing, enhancing efficiency. Neutralizing agents are introduced to reduce potential damages caused by chemicals. In summary, soft washing has significantly improved the efficiency and safety of cleaning structures and roofs.