water not completely draining and dishwashing action not very effiencent

I went to your site and check all the diagrams and then read the postings from others. I turned off the electrical breaker then took off the lower cover of the dishwasher. After disconnecting the water and electricial connections I was able to remove the 2 screws holding the unit in place and it came right out. I turned the unit over and was able to just remove the old part and put the new part in place. The whole job took me about one hour but I had never worked on a dishwasher before. Your site made the repair very easy to do on my own.