Top Load Dishwasher Thank You. My Dishwasher Sprayer Under The Top Shelf Has 'stuff' In It & Glasses Get Dirtier Than When Loaded.?

Thank you. My dishwasher sprayer under the top shelf has 'stuff' in it & glasses get dirtier than when loaded.? - top load dishwasher

Is there a way for me to clean the guns? The machine was used u0026lt \\ \\ \\ \\ \\ \\ \\ \\; 5 years. Thank you.