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    Saundrella's Avatar
    Saundrella Posts: 9, Reputation: 2
    New Member
    		  
    #1

    Sep 29, 2012, 12:20 PM
    Allowable depth of p trap in shower drain
    We would like to pass the 2 inch shower drain pipe just below the joist instead of cutting a hole in the joist and passing the pipe through it. This would require setting the top of the p trap 13 inches below the shower floor. Will we be violating any code in Minnesota if we do this?

    Saundra Singh
    speedball1's Avatar
    speedball1 Posts: 29,301, Reputation: 1939
    Eternal Plumber
    		  
    #2

    Sep 29, 2012, 12:25 PM
    I don't know about Minnesota but I did the same thing here in Florida and it passed inspection whit no problem. Good luck, Tom
    puffmugs's Avatar
    puffmugs Posts: 184, Reputation: 21
    Junior Member
    		  
    #3

    Sep 29, 2012, 04:09 PM
    It is legal in Ohio.
    ballengerb1's Avatar
    ballengerb1 Posts: 27,378, Reputation: 2280
    Home Repair & Remodeling Expert
    		  
    #4

    Sep 29, 2012, 05:51 PM
    I agree, legal but there are also codes specifying where and how large a hole can be drilled in a floor joist. You would need a hole slightly more than 2 3/8" which is the OD of a PVC drain. How tall is your floor joist? Rereading your post today I realize I missed your point, sorry, Go ahead
    Saundrella's Avatar
    Saundrella Posts: 9, Reputation: 2
    New Member
    		  
    #5

    Sep 29, 2012, 07:02 PM
    Quote Originally Posted by ballengerb1 View Post
    I agree, legal but there are also codes specifying where and how large a hole can be drilled in a floor joist. You would need a hole slightly more than 2 3/8" which is the OD of a PVC drain. How tall is your floor joist?
    We do not wish to go through the joist. We wish to go just under the joist but were wondering if the distance from the p trap to the floor (13") above involves a violation of code. Another fellow, plus the plumber in Sarasota said it would be fine to go under the joist. Thank you all for your speedy replies. We're going for it!

    Saundra
    speedball1's Avatar
    speedball1 Posts: 29,301, Reputation: 1939
    Eternal Plumber
    		  
    #6

    Sep 30, 2012, 06:46 AM
    Another fellow, plus the plumber in Sarasota said it would be fine to go under the joist.
    install the trap beneath the joist. You should have no problem with the inspection. Good luck, Tom
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