A hose tower is like a really big pole that firefighters use to store and dry their long hoses that they use to put out fires. It's kind of like a tall closet for their hoses. The tower can be really tall and have lots of space to store many hoses all at once. When firefighters are done using their hoses, they climb up the tower and hang them on hooks to dry until they need to use them again. This helps keep the hoses clean and ready to use when an emergency happens. It's an important tool that firefighters use to keep their equipment organized and ready to go when they need it.