1. the process of cleaning a filter by reversing the flow of water or other fluid through it
Usage: technical

1. present participle of backwash: to clean a filter by reversing the flow of fluid through it
Usage: technical

Examples

• The pool maintenance crew is backwashing the sand filter today.
• Regular backwashing helps maintain proper water circulation in the system.
• The water treatment plant requires backwashing of its filters every few hours.
• After backwashing, the filter should be rinsed before returning to normal operation.
• The technician explained the backwashing procedure to the new employees.
• Backwashing removes accumulated debris from the filter media.