Illinois Plumbing Code Practice

When metering faucets are used in public restrooms, how long should they remain open for each use?

1. 5 seconds

2. 7 seconds

3. 10 seconds

4. 15 seconds

The correct answer is: 10 seconds

The correct choice indicates that metering faucets used in public restrooms should remain open for 10 seconds for each use. This duration is established to ensure that users have sufficient time to wash their hands thoroughly, which is essential for maintaining hygiene, especially in public spaces. This 10-second timeframe aligns with public health recommendations regarding handwashing, allowing for the effective removal of dirt and germs. A shorter duration might not provide enough time for users to engage in proper handwashing techniques, which could compromise cleanliness and potentially lead to the spread of illness. Choosing a longer duration, such as 15 seconds, might lead to water wastage, which is not ideal in sustainable practices, particularly in public restroom facilities where water conservation is a consideration. In summary, the 10-second duration strikes a balance between encouraging thorough handwashing practices and promoting water efficiency, making it the optimal choice for public restroom metering faucets.