  A device for passive monitoring of slow water leaks, especially periodic
leaks caused by faltering gaskets. The detection and notification solution is
composed of an algorithm tuned specifically for bathroom leaks, motivated by a
surprise water bill, and a hardware prototype connected to a serverless cloud
component. The package is essentially a microservice for slow-leak detection
and notification. Inexpensive commodity hardware is utilized to send alerts to
users over Amazon Simple Notification Service (SNS).
  Index Terms: home automation, water conservation, IoT, signal processing.
