Client called us out today due to there being a leak that shows up on kitchen floor when kitchen fixtures were used. The waste arm in the wall was cast iron and copper and rest of home is still cast iron drains. Instead of pulling dishwasher and cutting the wall open, we left the old drain line abandoned in the wall, then drilled new 2” hole through bottom of cabinet and fed new 2” drain pipe through. Added new tee and studor vent up top, and below we cut out the few cast iron fittings right below the kitchen, and reconnected with new pvc properly supported and pitched. Once all connections were made, we tested our work with no issues. The old cast iron pipe was full of cast sludge, which will eventually start to cause issues in the home. Recommend jetting the line, and worst case replacing the line with pvc. 1 yr warranty
