Hi the salt container will allow water to flow through it all the time, it never completely empties so will look full of dirty water. You may find the filter needs cleaning..? twists out of base and comes apart, check for food stuck in the hole filter comes out of ..?
It would also pay you to try filling salt container up with dishwasher salt and then try running machine on hottest level a few times. then check if all pots and pans all come out cleaner..?
steve
September 2008