Product review (5 stars): Pay the 13 bucks for a bottle of Miele Dishwasher conditioner too!
If your dish soap ate away at the nylon wheels like mine did, I recommend you also buy Miele dishwasher conditioner for 13 bucks here.  I had this Kenmore for 9 years, but less than a year after replacing the wheels, a hole was found in the fiberglass tub.  The miele stuff will get rid of the corrosive residue, and revive the seals and gaskets.  I got my new miele dishwasher yesterday, but from the reviews of the conditioner, and the package directions, it will work on other brands too.  It's a lot cheaper than having a tech come out to fix, or not fix, the problem.  We used Cascade Complete powder for all the years we owned the Kenmore, and I'm quite sure we'd still have a Kenmore if we'd paid the extra 150 bucks for a stainless tub.  You live, you learn.