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    joseph001's Avatar
    joseph001 Posts: 14, Reputation: 1
    New Member
     
    #1

    Oct 18, 2010, 07:58 PM
    Slopes for air vent pipes?
    I just wanted to know if plumbing pipes that are just for air.. they need a slope?
    argaiu1017's Avatar
    argaiu1017 Posts: 92, Reputation: 8
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    #2

    Oct 18, 2010, 08:11 PM
    Hi,

    Although horizontal level vent pipes are permitted as minimum code, sloped vent pipes @ 1/4" per foot of fall towards the fixtures is best. So absolutely a YES.
    joseph001's Avatar
    joseph001 Posts: 14, Reputation: 1
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    #3

    Oct 18, 2010, 08:23 PM
    Comment on argaiu1017's post
    So we don't slope the hole line just the part that near the fixture?
    argaiu1017's Avatar
    argaiu1017 Posts: 92, Reputation: 8
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    #4

    Oct 18, 2010, 10:33 PM
    Hi,

    You must slope from where it is tied into to either a branch vent or through the roof. Basically if there is some liquid in it, it will drain off.
    joseph001's Avatar
    joseph001 Posts: 14, Reputation: 1
    New Member
     
    #5

    Oct 19, 2010, 08:50 AM
    Comment on argaiu1017's post
    OK so the hole line must be sloped in case there is water that will fall in to the pipes
    argaiu1017's Avatar
    argaiu1017 Posts: 92, Reputation: 8
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    #6

    Oct 19, 2010, 07:24 PM
    Comment on argaiu1017's post
    Yes, so it won't reduce the capacity of it. You want the full capacity of the vent to fuction.
    joseph001's Avatar
    joseph001 Posts: 14, Reputation: 1
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    #7

    Oct 19, 2010, 08:22 PM
    Comment on argaiu1017's post
    Thanks u so muchh!

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