Fuel tank vent

I never posted a photo of my tank vents so here goes. I think they're cool and they work great. CG regs require that if you have a plastic fuel tank, you must vent the compartment. I have two 45 gallon plastic tanks, one on each side of the boat. So I scoop in air via this custom Tolman Ram Air Induction system. The scoop pulls in the air when the boat is moving and keeps the rain out when the boat is still. I didn't want rain water to go right in to the vent tube so I made a small dorade box. In VERY heavy conditions you might get some water into the vent pipe but this would just drain down to the bilge from the tank compartment. The bottom of the dorade box is sloped out and down so that water can't collect inside.

The aft end of the compartment is open to the aft end of the boat under the deck. This entire area is vented via two exit pipes, one on each side of the boat. I like the way this works because if there ever was water in the tank areas, it would all drain out through the limber holes and into the bilge in the back of the boat and then out through the drain plug.

I like the fact that the entire aft under-deck area is open to air.