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    teachnj341's Avatar
    teachnj341 Posts: 3, Reputation: 1
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    #1

    Jul 24, 2013, 08:51 PM
    Please help me locate the correct vent pipe
    My basement toilet erupts when the upstairs toilet is flushed. I am on a septic system, have it regularly maintained, have had the main line snaked twice... no relief from the eruption. How do I figure out which of the 3 vent pipes on my roof should be snaked? I don't want to get up on the roof more than one time as I will need to borrow a ladder.
    hkstroud's Avatar
    hkstroud Posts: 11,929, Reputation: 899
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    #2

    Jul 24, 2013, 08:54 PM
    You apparently have a blockage in the line between the basement toilet and the septic tank. Pull the basement toilet and snake from there.
    teachnj341's Avatar
    teachnj341 Posts: 3, Reputation: 1
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    #3

    Jul 24, 2013, 08:58 PM
    Quote Originally Posted by hkstroud View Post
    You apparently have a blockage in the line between the basement toilet and the septic tank. Pull the basement toilet and snake from there.
    Thanks, but that's not it. I had roto rooter service the main drain (twice) all was clear. They suggested a vent blockage. I need to know how to find the right vent pipe!
    hkstroud's Avatar
    hkstroud Posts: 11,929, Reputation: 899
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    #4

    Jul 24, 2013, 09:04 PM
    I assume that when you say the basement toilet erupts, you mean that it over flows. A blocked vent pipe will not cause that. The only thing that will cause the basement toilet to overflow when the toilet upstairs is flushed, is a blockage in the main line after the point where the basement toilet connects to the main line.
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    teachnj341 Posts: 3, Reputation: 1
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    #5

    Jul 24, 2013, 09:08 PM
    Sorry, I guess I haven't explained clearly. It does not overflow. It shoots water up to wet the closed lid. Nothing ever fills up or overflows. It shoots like a geyser.
    hkstroud's Avatar
    hkstroud Posts: 11,929, Reputation: 899
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    #6

    Jul 24, 2013, 09:12 PM
    Does basement toilet flush OK?
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