| 1 | The tides at highest mark regorge the flood. | |
| 2 | There's a funny smell of soot blowing down the chimney. | |
| 3 | Clogged pipes caused drain water to back up into the room. | |
| 4 | A torrent of salt water cascaded through the hatch. | |
| 5 | Flap valve is mainly installed in the end of drainage pipeline to prevent extra water flow backward. |