Rean then looked by the side as an assistant brought a bucket with him. Inside, there was dirty water from the sewers. Obviously, the formation masters narrowed their eyes since the smell was anything but good.
"Hahaha! It's quite filthy, I know. However, this formation can take care of it."
Rean quickly poured the water into a tank linked to the formation. Little by little, the formation absorbed the Spiritual Energy of the surroundings as it worked. On another side, there was another tank where clean water fell.
Rean really liked the cultivation world. The runes worked perfectly in this place. As long as the formation was set up correctly, it would give back only pure water, which was nearly an impossible task back on Earth. However, Rean didn't do that. He at least knew that 100% pure water wasn't good for one's health. He also made sure to keep the balance of minerals inside the purified water similar to that of river water.