| Solution | Length | |
|---|---|---|
| 3 letters | ||
| way | 3 | |
| ell | 3 | |
| 4 letters | ||
| fang | 4 | |
| main | 4 | |
| tube | 4 | |
| duct | 4 | |
| pipe | 4 | |
| 5 letters | ||
| pipes | 5 | |
| mains | 5 | |
| sewer | 5 | |
| spout | 5 | |
| 6 letters | ||
| trough | 6 | |
| tunnel | 6 | |
| trench | 6 | |
| 7 letters | ||
| oilline | 7 | |
| ivtubes | 7 | |
| channel | 7 | |
| culvert | 7 | |
| vehicle | 7 | |
| 8 letters | ||
| pipeline | 8 | |
| 9 letters | ||
| underpass | 9 | |
| 11 letters | ||
| watercourse | 11 | |
| 12 letters | ||
| conveyorbelt | 12 | |