The shallow part is 4 feet. This depth makes the flip turn easy and possible. The pool is deeper, 6 feet, than Jing's height 5 feet 9 inches. In this Worthington pool, when Jing makes turns, Jing knows that he will not hit the bottom of the pool. Therefore, he dares to make the turn.
Batman: The Animated Series. Episode: Joker's Favor. Dr. Harleen Francis Quinzel, also known as Harley Quinn, first appeared in the Batman: The Animated Series episode Jokers Favor (episode #022, original air date: September 11, 1992) where she served as a humorous female sidekick to the Joker.
After this encounter, Bane made his move and attacked Batman (by this time, Bane had deduced the identity of Batman to be Bruce Wayne) at Wayne Manor, where he was most vulnerable as his alter-ego. The fight between Bruce Wayne and Bane was detailed in Batman #497, and ended in Bane breaking Wayne's back over his knee.