| Players cannot touch the sides or floor of the pool, and must tread water even when not involved in play. |
| New recruits may arrive many months before an orientation course is offered, forcing many to tread water in the meantime. |
| No, as long as you can swim comfortably and tread water you will be able to learn to Scuba dive safely. |
| Applicants should have completed the equivalent of advanced lessons and be able to tread water and swim two lengths of the pool. |
| Unfortunately, the rapporteur still has not grasped that this is why we must tread water for the time being. |
| At best, Washington policymakers seem content to tread water in the rising tide of red ink. |
