A fire protection sprinkler company was doing a routine sprinkler test when a valve malfunctioned and flooded a parking lot at the mall, located at 447 Great Mall Drive, around 9 a.m.
The affected lot is near the Century 20 movie theater and the Outback Steakhouse restaurant, fire Battalion Chief Melvin Vaughn said.
The fire department came out to unclog drains and let the sunshine soak up the rest of the water, Vaughn said.
The water was streaming out for only a couple of minutes, Great Mall spokesman Scott Dobrowski said.
"It didn't disrupt anyone's shopping," he said.
There was no damage to any businesses, Vaughn said.