Ask Experts Questions for FREE Help !
Ask
    mjfdc's Avatar
    mjfdc Posts: 3, Reputation: 1
    New Member
    		  
    #1

    Jan 1, 2011, 01:24 PM
    Can I cut a section of cast iron pipe and replace it with PVC?
    massplumber2008's Avatar
    massplumber2008 Posts: 12,832, Reputation: 1212
    Senior Plumbing Expert
    		  
    #2

    Jan 1, 2011, 01:57 PM

    Hi Mjfdc..

    If you are asking about cutting into a vertical cast iron iron stack and inserting PVC in between cast iron sections then the answer is NO. The weight of the cast iron above the PVC could one day crush/shatter the PVC and that could lead to a dangerous situation should the entire stack above come crashing down on someone... ;)

    If you are asking about cutting a horizontal section of cast iron drain line and replacing it with PVC to the fixture the drain picks up then YES, you can do that using a shielded PVC x Cast iron clamp... see images.

    What exactly are you trying to do?

    Let me know more, OK?

    Mark
    Attached Images
     
    mjfdc's Avatar
    mjfdc Posts: 3, Reputation: 1
    New Member
    		  
    #3

    Jan 1, 2011, 02:55 PM
    Hi Mark,
    Thanks for your help.
    It is a piece of vertical pipe that is about 2' long and comes off my tub drain. It doesn't appear to be bearing any weight, except for its own. The problem is that it ends into a 90 degree elbow that is on a slight downward slope. It comes off the tub drain into my basement and drops down to the elbow that then travels about 3' into the main drain. My tub has backed up (doesn't help that I have 3 teenage daughters with long hair and no concept of plumbing) and I think I need to cut the pipe and install a 45 or 60 degree bend to allow proper flow.
    Any other suggestions, or do you think I can go with the PVC?
    Mike
    massplumber2008's Avatar
    massplumber2008 Posts: 12,832, Reputation: 1212
    Senior Plumbing Expert
    		  
    #4

    Jan 1, 2011, 03:01 PM

    Cut the pipe using a sawzall with a lennox diamond sawzall blade if you can find it, or any carbide tipped blade will do, too. Then, use the appropriate shielded clamp and go with the PVC... ;)

    Mark
    mjfdc's Avatar
    mjfdc Posts: 3, Reputation: 1
    New Member
    		  
    #5

    Jan 2, 2011, 05:33 PM
    Comment on massplumber2008's post
    Thanks Mark!
    massplumber2008's Avatar
    massplumber2008 Posts: 12,832, Reputation: 1212
    Senior Plumbing Expert
    		  
    #6

    Jan 2, 2011, 05:43 PM

    :)
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!

Outside cast iron stack in PA Want to replace with PVC [ 6 Answers ]

I just bought a house and it was build in the 1920s. The drainage stack is outside the house and it is starting to leak. I am trying to decide if I should just patch the leaks or replace it with PVC. I am not even sure if that would work. Any suggestions as to where I should start? Thanks

Pushing a PVC pipe into a cracked cast iron pipe? [ 2 Answers ]

We have an older house with plastered walls. Our vertical sewer pipe is cast iron and badly cracked. We will have to open the wall in the bathroom where the pipes run to replace the vent pipe. Is it possible to push pvc pipe into the old cast iron pipe from above? We are trying to avoid opening...

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

Replace sch 40 pvc to cast iron saddle 4 in pvc pipe broke [ 4 Answers ]

Replace sch 40 pvc into cast iron saddle with lead pvc pipe broke off even with lead packing what is the easiest way to remove pvc and lead to replace it

How to cut cast iron pipe. [ 6 Answers ]

Im trying to get a fairly straigh cut on the cast iron 2 inch pipe that I accessed through a hole in the concrete foundation. Short of making the hole entirely to large to use my saws all, I don't know what to do!!

View more questions Search