Hose #'s 18, 19, 20, 21, and 22 in the top picture of the tank goes to the canister intake and is actually hose #'s 8, 9, and 10 in the bottom canister picture, and is fully sealed. The output from the canister to the throttle bodies which is #7 in the bottom picture goes straight to the throttle bodies and is also fully sealed. The hose #6 in the bottom picture goes straight downward as a drain from the canister (which nothing typically drains out of because the canister is doing its job). Being that it goes downward, water cannot
get into it. Hence, the system is fully sealed from water penetration.