Refer to the sketch for the two story house plumbing system. Determine the minimum size allowed by code. Assume the requirements for crossectional area have been met by other vents in the same system. What is the minim um size allowed for vent “A”?

Refer to the sketch for the two story house plumbing system. Determine the minimum size allowed by code. Assume the requirements for crossectional area have been met by other vents in the same system. What is the minim um size allowed for vent “A”?