CAVE CITY, AR (KAIT) - The Cave City Water and Sewer Department is hard at work making upgrades to their water treatment plant.
According to Mayor Jonas Anderson, the project to replace the rotors is the biggest improvement to the system in decades.
The old rotors were removed Wednesday.
"Our other ones have done good for 31 years and now, we're going to have new ones," Cave City Public Works Director Jim Smith said.
Those lasted about double their life expectancy.
Smith said the old rotors were fixed in concrete while the new ones float, which is better during heavy rains.
"The old way it would raise up and it puts a real strain on your bearings," Smith said. "Your water level is going to go up on the barrel of the rotors and it's just going to cause a bunch of stress on your system. The floating aerators are going to be the same depth no matter what happens."
Before, Smith would have to go out during a storm to adjust the rotors, but now they will self-adjust to those changing water levels.