| Clue | Source | Date |
|---|---|---|
| Got past the caulking | Wall Street Journal | 04 Sep 2021 |
| Permeated drop by drop | Eugene Sheffer | 04 Dec 2017 |
| Slowly got through | ||
| Slowly came through | ||
| Slowly came through | ||
| Got through a crack, say | ||
| Got through a crack, say | ||
| Entered via a crack, maybe | ||
| Entered oozingly |