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    k10367's Avatar
    k10367 Posts: 1, Reputation: 1
    New Member
    		  
    #1

    Dec 5, 2007, 12:25 PM
    Does my basement drain have a trap?
    How can I verify that my basement drain has a trap? I live in a late 1960's home and I want to install a shower in the basement. There is what looks to be a 2.5 or 3 inch cast iron hub with a cap on it for a drain. It appears as though the basement was built with the intention of installing a bathroom. There is a 4 inch sewer drain for a toilet a few feet away.
    Thanks
    Cheffie's Avatar
    Cheffie Posts: 32, Reputation: 4
    Junior Member
    		  
    #2

    Dec 5, 2007, 12:43 PM
    Pour a bucket of water down it, then look down with a flashlight if it reflects back it has a trap, if not and you smell sewer gas it's a clean out.
    PGerard's Avatar
    PGerard Posts: 37, Reputation: 1
    Junior Member
    		  
    #3

    Dec 5, 2007, 12:49 PM
    It shouldn't matter if the drain pipe has a trap or not because you should put a 2" trap right off your shower's drain before continuing the pipe to go tie in to your main drain. Don't forget to install a vent in the vicinity of your shower also and remember to give your shower drain pipe some nominal slope towards the main.
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