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

    Nov 16, 2010, 08:33 AM
    I have no room for a trap under shower??
    Can I come of my shower drain with a 90 and run 30" pipe to the trap and then down my stack? No room for a trap under shower.
    massplumber2008's Avatar
    massplumber2008 Posts: 12,832, Reputation: 1212
    Senior Plumbing Expert
    		  
    #2

    Nov 17, 2010, 06:34 AM

    Hi Bobhar...

    Not only are you not supposed to do what you propose, but you also seem to be forgetting about the vent needed for the new shower... ;) Or, at least you didn't mention the vent.

    You may be able to run an INDIRECT drain from the shower over to a properly vented PTRAP... ;) But first, tell me why you can't install a PTRAP under the shower, please? Is it that there is concrete in the way? If so, you just need to chip out a small hole in the floor so the trap rests in it (on sandy bed)...

    Back to you...

    Mark
    speedball1's Avatar
    speedball1 Posts: 29,301, Reputation: 1939
    Eternal Plumber
    		  
    #3

    Nov 17, 2010, 07:21 AM

    Can I come of my shower drain with a 90 and run 30" pipe to the trap and then down my stack?
    Good catch, Mark! In addition he would be installing a running trap,(see image) and inspectors frown on those. Regards, Tom
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