Olympic-sized bong hit

The question of whether Michael Phelps was using pool water in the bong he was photographed smoking is a joke that has surely been overplayed. What I am wondering is, did he use water from the Olympic pool in China where he earned eight gold medals? Smoking pot might not be the smartest move for a role model, but if he was doing it as homage to his Olympic performance, maybe we can let this one slide. In reality, smoking chlorinated pool water would probably be unhealthy, if not deadly.....