As noted, ground floor will have no rooms and some under-building parking. The rooms will be second through fifth floor (probably although they could call them 3 through 6 and count unused ground level as two). Not sure what requesting "near the pool" will actually get you. Savanna rooms do not face the pool but there are ones on the North wing that would be considered near the pool (via a straight line) but not necessarily a close walk to the pool since it is going to depend on where they put the exit and walk area to the pool. However, only part of that North wing will be open in August and those open will likely be those closer to the lobby and probably closer to where the exit to the pool is.
As to floor level, lower floors have more direct sight line to animals, higher you are looking down, as to which is better, it depends on your preference. Also, I would likely avoid multiple requests like both near the pool and low floor because they may then assign you to a room that meets neither request simply because they cannot meet both requests rather than just one.