Inspected a 1957 home with cast iron pipe for drainage that had a build up of rust, looked like stalactites. No water leaks were observed. Is this pipe ready to be replaced? Maybe further evaluation by a licensed plumber? Any recommendations would be great?
Happy New Year!
At the top of your post is a search you will find much info there like this.
http://www.nachi.org/forum/f22/cast-iron-drain-pipe-life-expectancy-79526/
…recommend professional sewer line scope due to age of drain lines…
Observe, document, let the buyer decide.
The leaks were stopped temporarily by the build up and self healed.
The cast iron pipe should be replaced.
What leaks? I see zero evidence of any actual leaks. A pinhole that is not expelling any liquid is not a “leak” in the terms that you are indicating. Be specific so the OP will actually be helped.
Cast iron (typically) rusts/corrodes from the inside out. What you are seeing is the rust/corrosion finding it’s way to the exterior surface. It is at it’s final stage before total failure and should be replaced.
Btw Bob… no need to respond. I already know what you will say. :blank:
Graphitic corrosion is selective leaching of iron from grey cast iron, where iron gets removed and graphite grains remain intact. Affected surfaces develop a layer of graphite, rust, and metallurgical impurities that may inhibit further leaching. The effect can be substantially reduced by alloying the cast iron with nickel.[1]](http://en.wikipedia.org/wiki/Graphitic_corrosion#cite_note-1)
Then why ask since you are agreeing ?:twisted:(troublemaker)
Too complex of a text for my report.(above)
Replace the section and have the rest further examined by a (in Illinois) Licensed Plumber.
For the benefit of the OP. That’s all. :-;;
http://www.oldhouseweb.com/how-to-advice/cast-iron-waste-pipes.shtml
http://www.youtube.com/watch?v=Qb4js6aP72c](http://www.youtube.com/watch?v=Qb4js6aP72c) ****
Yes we all want to read links with no comment.
Glad you can search.
Sorry Bob. I deleted them. You’re right, anyone can search.
Hope your 2014 is a great one!
And yet so many don’t bother.
I enjoyed them. So, here they are again…
Thanks Larry. I sure would love to see Joshua’s opinion, though! 
Sorry to sound crabby…spent the weekend with a stomach issue Flue-food.
Just better to give a summary of what the link says in case we don’t wish to search.
Hmmmm.
Again give us a synopsis of what is in the link and why we wish to click.
Next website I will just show a bunch of links cause Google likes that.
