The phrase "to leave the pool" means to exit or get out of the swimming pool.
Sentences with «to leave the pool»
Participating employees shall make equal contributions to the sick leave pool. (flsenate.gov)
As candidates are eliminated, votes go to candidates still in who that voter prefers (or, in the event they have no preference, leave the pool of voters). (nextleft.org)
Enjoy a complete service of drinks, cocktails and small snacks without leaving the pool area. (krystalurbancancunresort.com)