The physical wiping method can scrape off the dirt in the spray by brush, wiping cloth and other physical methods, and then rinse with clean water. The specific method is as follows:
1. Remove the nozzle and spray pipe;
2. Use tools such as rubber scrapers to scrape off residual pesticides or herbicides;
3. Wipe the inside and outside of the nozzle and spray tube with a cleaning cloth or brush;
4. Rinse and clean again.
