Finish powerball
I have hard water. But whatever you use, try adding about a shot glass full of chlorine bleach. Just pour it on the dishwasher door before you start the wash. I was skeptical since bleach and enzymes are NOT good together, but the bleach is mostly gone before the main wash starts and the powerball pops out of the dispenser. I don't pre-rinse anything and sometimes it's 3 days before running the machine packed full, and it works so well and my stainless interior looks so much cleaner and spot free and the machine smells so sanitized inside..Someone on this forum gave this tip - (think it was cleanteamofNY) and I'm so glad I tried it.
I love my Maytag dishwasher, but before I started doing this, the crack at the bottom of the door where it meets the dishwasher (i always try to keep this area clean because not much water can get to it) and since adding the bleach, it stays clean on its own.