After 15 years of at-least-daily use, the detergent cup lid had deteriorated such that the spring no longer gripped the peg adequately. I therefore had removed the spring and lid, not recognizing that the proper timing of the detergent release was significant to the overall sufficiency of the wash cycle. After a year of rewashing dishes, the proverbial light bulb illuminated, and I purchased a new detergent lid and detergent cup latch set (I only needed the spring, but not sold separately?). When my parts arrived, I connected the spring to the existing detergent cup panel and to the new lid, slid the lid back on the existing detergent cup, and voila - clean dishes straight out of the dishwasher again. Thank you!