What is the symbol for backwash on a pump?

The symbol for backwash on a pump typically resembles a curved arrow or a loop pointing back towards the pump, indicating the reverse flow of water. It may also include the Word "Backwash" or similar labeling to clarify its function. The exact design can vary depending on the diagram or schematic being used, but the key feature is the indication of flow direction. Always refer to the specific pump's manual or technical documentation for precise symbols and meanings.