Ans: The design and material of the pool cleaner body are built, especially after considering its condition of remaining underwater for many hours. So it is safe if you leave the pool vacuum underwater. It will not be damaged by water or chlorine. However, it is not recommended as it can reduce the durability of the pool cleaner. Don’t leave the pool vacuum underwater for many days if you are not using it. Keep it dry and out of the water when not in use.