Why is it useful that the wet tank (the first tank air reaches from the compressor) collects most of the system's moisture?

Pick an answer

1. Because the wet tank is not actually part of the braking system and only feeds the horn, when it's actually the first tank the compressor fills
2. Because draining that one tank regularly removes most of the water before it can spread further into the system
3. Because moisture in the wet tank has no effect on the rest of the system either way
4. Because it means the other tanks never need to be drained, no matter the season

Correct!

Not quite. The correct answer is highlighted.