Snaked outside floor drain in front of basement stairs 67.5 feet with bulb head. Only thing that came back was black sludge. Customer has stairwell leading to her basement that has dirt coming out of the cracks. When she uses her kitchen sink it would come up there. I had to clean out the grid that was totally blocked with dirt. Ran kitchen sink for 10 minutes and poured 4 gallons of water down drain with no back ups at this time. Sold customer bioclean