A system for flushing a toilet includes a reservoir configured to store a liquid for flushing a toilet, a fill valve assembly disposed in the reservoir configured to selectively provide the liquid to the reservoir, a flush valve assembly disposed in the reservoir configured to selectively provide the liquid stored in the reservoir to a bowl of the toilet, a sensor comprising a flow switch or a microphone disposed in the reservoir configured to collect sensor data indicative of a flow of the liquid to or from the reservoir, and a processor configured to identify a leak occurring in the toilet based on the sensor data.