AP Photo/Matt Dunham

The green water is going away. At least, Rio Games officials say that will be the case.
 
Pools used for diving and water polo haven't had the normal blue water in recent days, after an issue involving alkaline levels. Rio Games organizing committee spokesman Mario Andrada said that officials believe what was green will be blue again sometime Thursday.
 
"We should have done better," Andrada said.
 
FINA, the world governing body for aquatic sports, said earlier this week that tanks holding some of the chemicals used in the water treatment process ran out. That caused the pH level to go outside the usual range, leading to the discoloration.
 
"There is absolutely no risk to the health of the athletes due to the state of the water," Andrada said Thursday. "The water is improved. As a matter of fact, we could have improved the water much faster by using more chemicals and we are not doing so in order to respect the fact that we cannot have any risk whatsoever to the health of the athletes."
 
Andrada said the Brazilian water polo team joked that the green water brought them good luck. But some athletes, including U.S. water polo captain Tony Azevedo, said he believes organizers simply used way too much chlorine _ impairing his vision as a game went along.
 
"It's the Olympic Games," Azevedo said. "You can't have that."