Apprentice question
Stop and ask
Stop. Get direction before you touch it.
Chlorine/humid pool air can destroy the wrong metal fast. Stop and verify the specified corrosion-resistant material before more work is covered.
['A natatorium is not normal office air. Warm, humid, chemically treated air can attack galvanized coating and seams quickly.', 'Document the corrosion, check the material spec, and replace or reroute with the project-approved corrosion-resistant duct material, fasteners, sealant, and hangers. This is a spec/material issue, not a cosmetic cleanup.']