Commercial Ice Maker Users
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During a boil water advisory
Discard ice made prior to the boil water advisory issuance and discontinue making ice. Use commercially-manufactured ice.
When the boil water advisory is cancelled
A. Flush the water line to the machine inlet:
- Close the valve on the water line behind the machine and disconnect the water line from the machine inlet.
- Open the valve, run 5 gallons of water through the valve, and dispose of the water.
- Close the valve.
B. Replace any in-line filters.
C. Flush the water lines in the machine:
- Reconnect the water line to the machine outlet.
- Open the valve.
- Turn on the machine.
- Make ice for 1 hour and dispose of the ice.
D. Clean and disinfect all parts and surfaces that come in contact with water and ice, following the manufacturer’s instructions.
Note: This information supersedes the "Issuing and Rescinding a Boil Water Advisory" portion of the Cryptosporidium and Water Handbook.
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Page last reviewed: April 16, 2008
Content Source: Division of Parasitic Diseases (DPD)
National Center for Zoonotic, Vector-Borne, and Enteric Diseases (ZVED)