Vents

JLC Field Guide: Vents

The purpose of a plumbing vent is to break the suction and allow water to drain quickly while preserving the trap seal that keep sewer gas from wafting into the house.

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Vents Featured Articles

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The Down & Dirty on DWV

A plumber explains how vents and traps work and how to solve some difficult venting problems. More

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S-Traps vs. P-Traps

One of them is prone to siphoning off, which allows sewer gas to escape through... More

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Plumbing Venting Explained

Ever wonder why the plumber insists on notching and boring the framing to run all... More

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Plumbing Pitfalls For Bathroom Remodels

From corroded pipes and antique fixtures to limited access and impossible working... More

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Vents Instruction Articles

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Offset Vent Runs
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Pressure-Testing Exit Plumbing

To keep sewer gas out of a house, pay attention to fixture traps, the integrity of... More

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Maximum Length for Fixture Drains

To prevent a siphon from forming, make sure the drain pipe connects with the vent... More

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Best Connection for a Dishwasher Drain Hose

Why you should connect a dishwasher drain line to a sink drain instead of directly... More

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Winterize & Maintain Your Tankless Water Heater

Tankless water heaters are fantastic units but they do need more care &... More

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