| Answer | Crossword Clue |
|---|---|
| backwashing | Clean (a filter) by reversing the flow of fluid through it |
| backwashing | BACKWASH, to affect with receding water |
| Answer | Crossword Clue |
|---|---|
| backwashing | Clean (a filter) by reversing the flow of fluid through it |
| backwashing | BACKWASH, to affect with receding water |
Crossword
a puzzle consisting of a grid of squares and blanks into which words crossing vertically and horizontally are written according to clues.