A sensing system for a floating pool system for detecting and alerting a user of disturbances and detecting various levels and releasing chemicals into a liquid medium. The system comprises a controller that can comprise a wireless communication module and at least one sensor, and a receiving device can be configured to receive a signal from the wireless communication module. The controller can comprise at least one tilt sensor that is generally in an open position and closes with a waking event. The controller sends a message to the receiving device when a waking event occurs, alerting the user to a disturbance and possibly dangerous situation.