The Kreepy Krauly Sand Shark Float Assembly is a component of a Kreepy Krauly Sand Shark pool cleaner. It is typically located at the back of the cleaner and is responsible for maintaining the cleaner's buoyancy. The float assembly is made up of a series of floats that keep the cleaner afloat and allow it to move around the pool. The floats are typically made of a durable material such as PVC or polystyrene. The float assembly allows the cleaner to move around the pool and pick up debris without sinking to the bottom. It's important to keep the floats in good condition, because if they become damaged, the cleaner may lose its buoyancy and will not function properly. Replacing the float assembly when it wears out can prolong the life of the cleaner and ensure its efficiency. It's recommended to be done by a professional pool technician.