Clean your dishwasher with Lemonade Kool-Aid?
According to the folks at Life-Hacker, running your empty dishwasher with a
Lemonade Kool-Aid packet in the detergent cup will clean lime deposits and iron stains.
Don’t try using other flavors, it’s the citric acid in the Lemonade that attacks the stains.
I’ve heard that Tang works too but I have not tried it.