When an establishment is notified that the Boil Water Advisory has been lifted and the drinking water supply is safe, the following actions need to be taken.
- Flush pipes throughout the facility by running each faucet and drinking water fountain with cold water for at least 15 minutes after free chlorine residual concentrations, cold water temperature, and water color stabilize.
- Flush, clean, and sanitize appliances that use tap water (e.g., beverage dispensers, spray misters, coffee and tea urns, ice bins, glasswashers, and dishwashers) according to the manufacturer’s instructions.
- Run water softeners through a regeneration cycle.
- Flush hot water tanks.
- Replace- and sanitize water filter cartridges according to the manufacturer’s instructions.
- Take proper steps to flush ice machines by following the manufacturer’s instructions, including:
- Discard any remaining ice.
- Flush the water line to the machine inlet.
- Close the valve on the water line behind the machine inlet.
- Disconnect the water line from the machine inlet.
- Open the valve and run water through the valve for at least 15 minutes after free chlorine residual concentrations, cold water temperature, and water color stabilize.
- Dispose of the water.
- Close the valve.
- Re-assemble the inlet appurtenances.
- Discard the first two batches of ice.
- Beginning with the third ice batch, ice may be used from the ice machine for purposes of consumption.