it sits in a pipe overnight. However, flushing a little water through a tap before drinking can help reduce exposure to water that has been sitting in the plumbing.
The U.S. Centers for Disease Control and Prevention recommends flushing faucets that have not been used for a week or longer. Its guidance includes running cold water for two minutes before using the faucet again.
For everyday drinking, it is also sensible to use cold water and allow it to run briefly if it has been sitting unused for an
