Aerial ladders that have been supplied with salt water must be flushed with fresh water supplied by a pumper for a least ______ min.

Aerial ladders that have been supplied with salt water must be flushed with fresh water supplied by a pumper for a least ______ min.

• A. 5 min
• B. 10 min
• C. 2 min
• D. 15 min

Answer: (A)

When equipment like aerial ladders is exposed to salt water, flushing with fresh water is essential to remove salt and other contaminants that can cause corrosion and damage to pumps, seals, and metal components. Five minutes is the recommended minimum because it provides enough time for fresh water to circulate through the hydraulic circuit, reach all passages, and rinse out most of the salt residues. After five minutes, check that the water runs clear and the system shows no lingering salt, and extend the flush if needed. Always use a fresh water supply from the pumper and monitor the discharge to ensure a thorough rinse.

When equipment like aerial ladders is exposed to salt water, flushing with fresh water is essential to remove salt and other contaminants that can cause corrosion and damage to pumps, seals, and metal components. Five minutes is the recommended minimum because it provides enough time for fresh water to circulate through the hydraulic circuit, reach all passages, and rinse out most of the salt residues. After five minutes, check that the water runs clear and the system shows no lingering salt, and extend the flush if needed. Always use a fresh water supply from the pumper and monitor the discharge to ensure a thorough rinse.