Margaret O University Heights , OH November 08, 2014 Dishes were not getting clean; i noticed that the middle spray arm was not working; but also other spray arms appeared to have residue in the irrigation holes I did an internet search - found your site explaining how to fix. I purchased the upper, middle, and lower spray arms - It took about 15 minutes total. Very very easy. No more dirty dishes! 13 People found this story helpful Do-It-Yourself Rating: Repair Time Estimate: Less than 15 minutes