Food debris on dishes; seeds stuck in spray arms

Remove mid and bottom rack. The nut on the bottom spray arm can be removed by hand; all screws are T-20; just hold on to the impeller to turn its screw. I keep a T-20 under the sink, which tells you something about how reliable we've found this model! Remove screws as you go down, replace parts as you go back up; assembly is reverse of removal, yadda, yadda. Don't miss opportunities to notice how Maytag keeps making small improvements to many of the parts, wonder whether in a few more years of purchasing replacement parts for this thing it will finally stop breaking. My wife informs me that plastic mesh filters like Maytag uses are something she buys for her lab as disposable single use items. We actually had a Bosch on order (metal filters) but I decided to give this unit one more infusion of parts. It's working better now, but I don't know how long it will last before something else gives out.