1. Minus the bottom of the Sprite bottle and drill a hole in the Sprite lid. The size of the hole corresponds to the size of the straw. Set aside when finished.
2. Cut the gauze into a circle with scissors. The size of the circle matches the inside diameter of the Sprite bottle and set it aside.
3. Fill the Sprite bottle with plastic bottles, pebbles, fine sand, cotton, scissors, straws and activated carbon to complete a simple water purifier. ?When using it, pour turbid water from the top of the bottle, so that after filtering through the layers, the water flowing from the straw is clear water.