Ask Experts Questions for FREE Help !
Ask
    jahman420's Avatar
    jahman420 Posts: 1, Reputation: 1
    New Member
    		  
    #1

    Sep 18, 2012, 09:31 AM
    Cast iron stacks
    I am looking to connect pvc drain pipe to the cast iron stack ,which is a 2in offshoot on the main pipe, I am wanting to no if this can be done and what fittings I use?
    massplumber2008's Avatar
    massplumber2008 Posts: 12,832, Reputation: 1212
    Senior Plumbing Expert
    		  
    #2

    Sep 18, 2012, 10:09 AM
    Hi Jahman420

    Sure can be done. First, you'll need to support the weight of the cast iron stack using a riser clamp and some 2"x4"s... see images below.

    Then you purchase a NO HUB CAST IRON 4"x2" tapped sanitary tee fitting and measure the length of the fitting and then add 1/2" to that measure and transfer that measure to the pipe.

    You can only purchase the no hub cast iron fitting at a plumbing store. Purchase (2) no hub clamps at the same time and the necessary PVC pipe/fittings, cement/primer, hangers, etc. that you'll need.

    Use a reciprocating saw with a DIAMOND sawzall blade (only made by Lennox) to make cuts at the supported pipe and remove the cut piece. This will take 10-15 minutes. You could also rent a cast iron snap or ratchet cutter, but I don't recommend these for homeowners as they usually only end up crushing the pipe.

    Install the rubber part of the clamps onto the cast iron fitting and FLIP the rubbers back on themselves so you can insert the fitting into the stack. Slide the clamps onto the cast iron stack before installing the fitting and then after the fitting is in place and aligned, FLIP the rubbers back over and slide the clamps into place... tighten appropriately.

    That should get you started... ;)

    Mark
    Attached Images
        
Not your question? Ask your question View similar questions
 

Question Tools Search this Question
Search this Question:

Advanced Search

Add your answer here.


Check out some similar questions!

Is there such thing as a Cast Iron sleeve to put into Cast Iron plumbing pipes? [ 8 Answers ]

Is there a Cast Iron sleeve to put inside Cast Iron plumbing pipes to keep them from rusting?

How to undo a cast iron iron plug ? [ 2 Answers ]

I am trying to remove a cast iron plug from a cast iron drainage clean out behind the bathroom in an 80-90 year old apartment building to unclog the drainage. The plug is so tightly set that despite heating with a torch and liberal applications of WD-40, use of a big pipe wrench and a lot of elbow...

Cutting through cast iron How is it possible to cut through a cast iron soil pipe [ 6 Answers ]

Cutting through cast iron How is it possible to cut through a cast iron soil pipe

Cast iron vertical from cast iron horizontal can be pvc? [ 2 Answers ]

A leak developed in the main cast iron vertical stack of pipes leading to the horizontal main drain. Unfortunately, for me, the leak was so close to the ground that I had to break the concrete slab of the house. At that point, it just made sense to dig an extra 4 inches or so and remove the bad...

Cast iron [ 2 Answers ]

Hi folks, What is the best way to repair a leaking tub drain that connects to cast iron main drain? Thank you, Jen

View more questions Search