if your laundry drain is plugged, then i would first try sulfuric acid. it is available at most cheapo depot plumbing departments, it eats thru every thing. but be carefull it is very corrosive and stinks like crazy, it also reacts violently with water.let the drain empty out slowly, pour it in the drain, the whole bottle and cover the end of the drain for the fumes, leave for 1/2 hour and then flush with cold water. turns chrome and stainless steel black. be careful with this stuff. 20 bucks is cheaper than having a plumber like me come for a vist! haha