Kitchen sink drains very slowly. One story home. Year Built: Looks to be early 1960's if not older. Landlady is of NO help. (We plan on moving within 6 months. Long story.) Tried the following steps, not all in one day, especially not after pouring the drain cleaner. 1. Tried plunger. 2. Took trap apart and everything is clean. 3. Ran hand snake down pipe stub that runs down through the floor. Found no obstruction 4. Poured liquid fire down pipe stub. 5. Put drain bladder down pipe stub and water flowed freely. 6. Ran hand snake down vent pipe from roof and hit obstruction about 10 feet down. Unable to break through. 7. Tried running garden hose down vent pipe and water came back up through the vent pipe. This is where it gets interesting. Put drain bladder down vent pipe and water began flowing from the laundry drain to the outside. The laundry room has an old rusty pipe that runs straight out the wall and drains into the yard. (I'm sure this is illegal). There is also a floor drain in the laundry room. No water will come up through the floor drain. This water at first was black and smelled of sewage. Appeared to be decaying matter such as leaves and twigs. After a few minutes the water turned clear. Went back on roof and removed bladder. Tried shoving garden hose down and hit obstruction again. Tried working hose back and forth, every which way. No success. Tried drain bladder one more time and same result with water coming out laundry drain. Finally gave up. Also, searched for a cleanout outside around the house and unable to find anything. Question 1: Other than calling a professional out is there some sort of tool like a 12 foot pole with an attachment that could cut through the obstruction? Question 2: Any idea why the water is coming out the laundry drain? Does this mean there is a clog further down somewhere? No water came up into the kitchen sink drain while running water down the vent pipe. Bathroom sink and toilet appear to be fine and experience no problems.