When installing a new ABS joint in my cast iron stack. I noticed that only 2 inches of the 4 inch stack diameter is clear of buildup throughout. I am wondering if using an auger would damage the cast iron pipe, seeing as the buildup has occured over 100 years, or if I can simply clear some of this out without worry. Thanks!
» This message has been edited by DUNBAR on 16 June 2004