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What is a vent, and what role does it play in the plumbing system?

April 26, 2017play plumbing system vent

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What is a vent, and what role does it play in the plumbing system?

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There are vents coming out of every roof. They are very important to your plumbing system, because they guide sewer gases out of your home. Air is needed to force the liquid down the pipe. If there are no vents, an unpleasant odor arises when drain liquid sucks air from plumbing fixture traps.