During regular preventive maintenance activities, you notice green algae and scaling on the interior walls of the cooling tower. What action should you take to resolve the concerns?
A.
Shutdown the tower, allow surfaces to dry, and scrape biological growth from interior walls before returning the tower to operation.
B.
Test the cooling tower water, adjust the frequency of chemical balancing, and flush if needed.
C.
Perform a building occupant health survey to determine any adverse effects, and then adjust the injection levels of balancing chemicals.
D.
Drain the tower and then complete a fresh-water flush using warm water, and add new balancing chemicals.
Testing the cooling tower water and adjusting the frequency of chemical balancing (B) is the correct action, ensuring proper water treatment to prevent biological growth.
Regular monitoring and chemical treatment prevent Legionella and other microbial growth.
Why not other options?
(A) Scraping the walls does not address the root cause.
(C) Conducting a health survey is not an immediate maintenance action.
(D) Draining and flushing with warm water is excessive and not always necessary.
Chosen Answer:
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