During a boil advisory:
Do not consume tap water that has not been disinfected, ice or drinks made from tap water that has not been disinfected, or raw foods rinsed with tap water that has not been disinfected. Disinfect water by: Boiling at a rolling boil for 1 minute. Safe alternative sources of potable water include bottled, treated or distilled water.
Upon rescinding of a boil advisory:
Flush household pipes/faucets; as general guidance, run cold water faucets for 3 minutes each if they have not been used in the last 24 hours. Flush home automatic icemakers by making three batches of ice cubes and discard all three batches.