Removing Old Cast Iron from Concrete

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Blue Bird

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Can You remove the old cast iron from the concrete without destroying the concrete?
 

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Terry

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Huh? Pipes embedded in concrete are pretty permanent unless you cut and break the concrete.

Are you moving the plumbing? Or capping it off?
 

Blue Bird

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Centuries of plumbing progress
Cast in concrete is a hump and grunt removal
I was hopeing for a silver bullet
May try a 3" core drill @ the footer for the 2" wast. Snap level @ the mudsill pilot w/ a hole hog and slurry through with the core.
Hole off the 4" stack @ toilet bend, bellies throughout the line, previous septic install has the waste zig zaging all over the back yard to reach the municaple sewer installed in the 80s
Will update on how the air spade works excavating under the slab.
@ close to 90 years some of it looks dandy some a crumbling cast iron mess
Sure appreciate your sound advice!
 

Sylvan

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The apartment building that used imported cast iron that was totally corroded chopping though a 30" concrete slab was not an option

So we end up chopping a 4' x 4' x 4' pit installing two federal sewer ejectors and cutting the existing stacks and rerouting the lines on top of the concrete and allowing it to drain into the covered pit
 
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Hey, wait a minute.

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