There is always immediate relief when we know a boil water advisory is over, but how do you make sure you have flushed any of the potentially contaminated water from your plumbing and home. Flushing your household and building water lines includes interior and exterior faucets, shows, water and ice dispensers, water treatment units, etc.
Here are some guidelines to consider:
Cold Water Faucets:
Run tap water until the water feels cold, one minute or more, before drinking, brushing teeth, or using for food preparation. If you have a single-lever faucet, set it to run the cold water first.
Hot Water Faucets:
To clear hot-water pipes and water heater of untreated water, flush the hot water line for a minimum of 15 minutes for a typical household 40-gallon hot-water tank, 30 minutes for an 80-gallon hot water tank or larger. Hot water is then safe to use for washing hands, and for hand-washing of dishes, pots and pans, etc. Never use water from the “hot” faucet for drinking, cooking, or other internal consumption purposes.
After flushing hot water pipes and water heater, run dishwasher empty one time.
Discard any water used in humidifiers, Continuous Positive Airway Pressure (CPAP), oral, medical, or health care devices, and rinse the device with clean water.
Food and Baby Formula:
Discard baby formula and other foods prepared with water on the day or days of the boil order. If unsure of the dates, contact you water department.
Refrigerator Water-Dispensing Machine:
Water dispensers from refrigerators should be flushed by at least one quart of water. If unsure of your dispenser’s capacity, refer to manufacturer specifications.
Automatic ice dispensers should be emptied of ice made during the boil water order and run through a 24-hour cycle, discarding the ice to assure purging of the icemaker water supply line.