If you notice dirt or debris inside your water tank, we recommend using a soft, damp cloth or wet wipes to wipe the interior. Then, turn off the power, unplug the power cord, remove the light board and extendable rod, and rinse the water tank with clean water. Avoid using detergents as they may adversely affect plant growth. During the cleaning process, ensure that the light board, extendable rod, and power port do not come into contact with water, as this can cause circuit damage. Also, try to prevent direct contact between hydroponics system's screen(MAX/PRO) and water.