Issue link: https://hi.iaq.net/i/692160
20 DEVELOPING A LEGIONELLA WATER MANAGEMENT PROGRAM 5 Example 3—Broken chlorinator in the hot tub 1. Michelle notes chlorine levels of zero within the hot tub during her daily inspection. On further inspection she notices that disinfectant in the automatic delivery system reservoir is full. 2. Michelle immediately closes the hot tub and calls the pool contractor. 3. The contractor arrives the next day to discover that the chlorinator pump has malfunctioned and replaces the unit. 4. Michelle documents the action and follows the water management program's protocol for start up, which includes cleaning the hot tub, shocking it with a high dose of disinfectant, and back-flushing the filter. Michelle also recommends that the supervisor amend the water management program to include a daily check of equipment operation and disinfectant levels in the reservoir, in addition to the daily visual inspection and chlorine measurements, so that such equipment failures may be detected more quickly in the future. Disclaimer: Example content is provided for illustrative purposes only and is not intended to be relevant to all buildings. Reference: ASHRAE 188: Legionellosis: Risk Management for Building Water Systems June 26, 2015. ASHRAE: Atlanta. www.ashrae.org