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    posh929's Avatar
    posh929 Posts: 1, Reputation: 1
    New Member
    		  
    #1

    Apr 29, 2009, 06:31 PM
    Vents in bathroom
    Hello. I am doing a bathroom in westchester ny and I would like to know if it is OK to replace the vent lines and drains that are 1 1/2 in copper to1 1/2 in pvc or does it have to be 2 inc pvc
    ballengerb1's Avatar
    ballengerb1 Posts: 27,378, Reputation: 2280
    Home Repair & Remodeling Expert
    		  
    #2

    Apr 29, 2009, 06:56 PM

    Just so we ares your you are talking about your plumbing drain waste and vent stack pipes, right? Your sink can be 1 1/4" and a tub 1 1/2" but a shower requires a 2" Does this answer what you need?
    Milo Dolezal's Avatar
    Milo Dolezal Posts: 7,192, Reputation: 523
    Plumbing Expert
    		  
    #3

    Apr 29, 2009, 07:51 PM

    Usually, toilet requires 2" vent. Tub, shower and sinks can have 1 1/2" vents. Vents can be combined below the ceiling into 2" vent and continue through the roof with one 2" vent.

    Drains: Tub and shower requires 2" and 2' trap, sink 1 1/2" drain and 1 1/4" trap.

    Sure, it is just fine to replace copper drains / vents with PVC or ABS. Make sure you use correct Fernco shielded couplings when connecting copper to plastic.
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