I ordered the new tube with sprayer. Removed the top rack from the washer and flipped it over, I removed the clip (no tool required) holding the funnel end of the tube from the rack and then using a phillips screwdriver I removed the single screw holding the tube and spray arm from the post holding them in place. The parts were installed in reverse order. I placed the top rack back on it's tracks, inserted the clips in the tracks and the job was done. CLEAN DISHES :-)