Automatic flush toilets are a common occurrence in high-traffic public restrooms. They were originally touted as a more hygienic alternative to manual flush toilets. Many of these toilets use a large amount of water, and are subject to excessive flushing due to over-sensitive flush sensors. A 2010 study on public restrooms in a Tampa Bay office building reported a 50% increase in water use after automatic flush toilets were installed. Placing the sensor above the toilet, facing up, along with proper installation and maintenance can vastly reduce the amount of errant flushes and water wasted as a result.