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Old 02-06-2011, 03:42 PM   #1
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Wet vent question


I will be using about 4 feet of a 2 inch pipe for wet venting a toilet. 2' horizontal and 2 feet vertical. In a typical vent installation, the vent comes off of the top of the drain pipe. In a wet vent situation, the drain is used. So I am wondering about the angles that the 2" pipe will need to enter the 3 inch pipe as a wet vent. Is it just a standard horizontal slope of 1/4 inch per foot?

It shouldn't enter on the top...right?

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Old 02-06-2011, 08:08 PM   #2
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Wet vent question


in my code, you can only wet vent in the vertical, its a big no no horizontally. you might check that you're allowed to do it before you do

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Old 02-06-2011, 10:58 PM   #3
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Wet vent question


The code discusses wet venting horizontally. Just difficult to understand the terminology. I believe I can go up to 6 feet with a pipe size one over the required for drainage of the upstream fixture. In my case that would be 2".
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