Are you on city water or your own well?

Rusty spots can sometimes be an early sign of bearing failure.

Jon

The spots may be rust spots, as Jon mentioned. If they are, do not use liquid bleach, as that will make them permanent.

I had a similar problem when the hot water heater in my apartment was on its last leg. It was releasing rust into the hot water. Try running hot water from the faucet though a white washcloth, and see if any discoloration occurs. That may tell you if rust is in your water or not.

There are products that take out those stains. One I used was called Iron Out.

Good luck!

Joe

I am on city water...matter of fact, Memphis has some of the purest tap water in the world...or so the utility says. Not hard water and it comes from a natural aquifer, so only the chemicals they add, like flouride are in it.

If they are rust stains, would they appear as bleach marks on dark colors???

Water can pick up iron from the pipes and tanks between the aquifer and your tap. I would guess, however, that something else is going on, either clumping detergent/bleach, or some kind of substance building up in your machine. You could try thoroughly cleaning the machine, ie follow the 'usual' instructions with dishwasher soap and use the Danby's nice water heater. - DR