Customer called in because water was running out of side of house thru stucco. Upon arrival I found the kitchen sink was backed up. I ran my 1/2 cable thru clean out and cleared drain. Once drain was cleared I ran 2 sink full of water to test drain. I noticed when the sink was draining the full sink it was still pouring out of stucco. I cut a square out of stucco and found that the abs drain was broken which caused the leaking and water damage to home. I cut out broken section of pipe and installed new 1 1/2x2 in San tee, 2 in clean out with cap and new pipe.