| Similarity | Rank | |
|---|---|---|
| Septic | 0.813 | 68920 |
| backflow | 0.812 | 82062 |
| sewage | 0.799 | 15787 |
| sump | 0.778 | 30252 |
| drainage | 0.774 | 10638 |
| sewer | 0.763 | 13245 |
| wastewater | 0.744 | 17337 |
| leaky | 0.731 | 25620 |
| seepage | 0.720 | 53925 |
| drains | 0.717 | 17106 |
| sprinkler | 0.714 | 26883 |
| recirculation | 0.711 | 82564 |
| effluent | 0.709 | 38366 |
| filtration | 0.708 | 16460 |
| aeration | 0.706 | 43387 |
| chlorination | 0.700 | 98665 |
| stormwater | 0.695 | 26586 |
| low-flow | 0.693 | 80266 |
| rainwater | 0.688 | 23331 |
| decontamination | 0.688 | 56887 |
| ductwork | 0.687 | 50140 |
| crawlspace | 0.682 | 81731 |
| sludge | 0.682 | 25075 |
| Sewage | 0.681 | 66452 |
| pump | 0.681 | 4310 |