Deck: Safety

1. A Each vent for the tank must be equal to the area of the tank filling line.
2. B There must be twice as much vent area as the area of the fill line.
3. C The total area of the vents or the overflow shall be at least 125% of the area of the fill line.
4. D The tanks must be protected by overflows.

Tip: press A-D to answer