A water leak alarm assembly for identifying a water leak in a toilet includes a first housing that is mounted to a tank of a toilet. An alert unit is positioned within the first housing and the alert unit selectively generates an audible alarm. A second housing is provided and the second housing is positioned on a fluid supply line on the toilet. A detection unit is positioned within the second housing to detect the sound of water flowing through the fluid supply line. The detection unit is electrically coupled to the alert unit. The alert unit emits the audible alarm when the detection unit detects the sound of water flowing through the fluid supply line for a duration of time that exceeds a trigger duration of time.
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