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    Tonya Davis's Avatar
    Tonya Davis Posts: 1, Reputation: 1
    New Member
    		  
    #1

    Aug 19, 2015, 05:17 AM
    Drain backing up
    I live in what use to be a hotel and is now efficiency and the plumbing drains runs from 2 units to one drain line. If 1 drain is backing up wouldn't both drains back up?
    talaniman's Avatar
    talaniman Posts: 54,325, Reputation: 10855
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    #2

    Aug 19, 2015, 07:38 AM
    Depends where the clog is. A clog in one unit and not the other indicates a clog before the two lines meet both lines being equal to the main.
    smoothy's Avatar
    smoothy Posts: 25,490, Reputation: 2853
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    #3

    Aug 19, 2015, 07:49 AM
    I agree with talaniman. It will only back up in both if the clog is beyond the point both merge into one.
    ballengerb1's Avatar
    ballengerb1 Posts: 27,378, Reputation: 2280
    Home Repair & Remodeling Expert
    		  
    #4

    Aug 19, 2015, 11:17 AM
    Yep, correct. If the clog is upstream of the Y connection only one would backup.
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