I guess it is a big YMMV how much liquid one can get away with.
JFK - PHX, through JFK with one infant and two children, was able to bring through close to 10 bottles of water. (6 Passengers). No one said anything...
Tried it on the return. PHX - JFK, through PHX they looked at them and was like ok you have to many bottles. After negotiating what a reasonable amount to bring through was, they let us through with 5 8oz bottles.
And they missed two that never came out of the bag
