How often should air tanks be drained of moisture?

Answer: B — Daily or as recommended by the manufacturer

Air tanks should be drained of moisture daily or as recommended by the manufacturer to prevent the buildup of water, which can cause rust and corrosion within the air brake system. Moisture can significantly affect the performance of air brakes, leading to issues such as freezing in cold weather or brake failure. Regular drainage helps maintain the integrity of the air brake system, ensuring safe and effective operation. While some may think draining the tanks weekly or monthly is sufficient, this frequency does not account for varying conditions that can lead to more moisture accumulation, such as humid environments or heavy usage of the brakes. The manufacturer’s recommendations are based on the specific design and usage of the braking system, making timely maintenance crucial for optimal performance and safety on the road.