I installed the Kitchenaid superba about 2 years ago. For the past several months, the glasses have not been getting clean, nor for that matter has the silverware. The dishwasher has had a slight odor to it. The stainless steel interior has not looked clean for a while.

Recently I thought that there was a hard water issue after seeing what I thought was a calcium buildup on the screen. I put a gallon of vinegar in the bottom of the machine, and ran it after several hours of soaking. This did not resolve the issue.

I ordered a new check valve. When I dissassembled the machine to install the check valve it became quite evident that the base of the dishwasher did not discharge all of the water. I had to use a sponge to get it out so I could replace the check valve. I also had to remove a some white sludge on the bottom, as well as some other debris. I did not replace the chopper blade, but there was a bit of white debris around the edges of that screen (as there was most places).

We just ran the dishasher again - the glasses in the top rack still did not clean well. there were still lip marks (not lipstick, just lip marks) on the glasses.

Is my pump bad? Is it time to throw in the towel and get a new dishwasher, or is there a straightforward repair that a DIY can do?

thanks so much for your help.