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    NITECAP's Avatar
    NITECAP Posts: 4, Reputation: 1
    New Member
    		  
    #1

    Feb 23, 2008, 08:32 PM
    PVC to cast iron pipe
    Hey guys, I am cutting out a 4 foot section of 4" cast iron stack pipe and installing a pvc cleanout and a y section of pvc near the top. I have already installed riser clamps on top and bottom. What can I use to adapt the pvc to the cast iron? I have seen some guys say rubber donut types or with lead. The cast iron pipe is approx. 4 1/2" in diameter. Any suggestions on what to use. I have done this before on another home but a little different situation. Should I just use hub adapters? Thank you in advance , Nick
    speedball1's Avatar
    speedball1 Posts: 29,301, Reputation: 1939
    Eternal Plumber
    		  
    #2

    Feb 24, 2008, 06:25 AM
    Quote Originally Posted by NITECAP
    Hey guys, I am cutting out a 4 foot section of 4" cast iron stack pipe and installing a pvc cleanout and a y section of pvc near the top. I have already installed riser clamps on top and bottom. What can I use to adapt the pvc to the cast iron? I have seen some guys say rubber donut types or with lead. The cast iron pipe is approx. 4 1/2" in diameter. Any suggestions on what to use. I have done this before on another home but a little different situation. Should I just use hub adapters?? Thank you in advance , Nick
    DO NOT use ruccer couplings on az vertical stack. They aren't ridged enough to support a vertical joint. Use shielded couplings,(see image) to join the PVC with the Cast iron. Good luck, Tom
    NITECAP's Avatar
    NITECAP Posts: 4, Reputation: 1
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    #3

    Feb 24, 2008, 12:33 PM
    Thanks for the info Tom. I'll post the results of my project when I finish. Thank You!!
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