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    ssj21667's Avatar
    ssj21667 Posts: 1, Reputation: 1
    New Member
    		  
    #1

    Apr 8, 2012, 03:25 AM
    I need to replace the cast iron riser in the wall.
    It is the riser for the kitchen sink. Access is limited. Do I cut into the wall and run a new riser?

    The project started with me replacing the washer drain pipe (cast iron). The washer drain and the sink drain connect. Replaced the wye connect the washer drain and got back up to the washer and in the sink.
    massplumber2008's Avatar
    massplumber2008 Posts: 12,832, Reputation: 1212
    Senior Plumbing Expert
    		  
    #2

    Apr 8, 2012, 06:03 AM
    Hi Ssj21667

    Why replace the cast iron vent pipe in the wall... is it leaking or badly corroded?

    If there are no issues that require replacement then you can simply connect onto the old cast iron pipe using a cast iron x PVC SHIELDED TRANSITION CLAMP... see image below.

    Let me know what you think,OK?

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

    Apr 8, 2012, 07:06 AM
    Quote Originally Posted by ssj21667 View Post
    It is the riser for the kitchen sink. Access is limited. Do I cut into the wall and run a new riser?

    The project started with me replacing the washer drain pipe (cast iron). The washer drain and the sink drain connect. Replaced the wye connect the washer drain and got back up to the washer and in the sink.
    You wish to replace the kitchen vent stack. Why? Just because it's cast iron? Other reasons? Back to you, Tom
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