Right. If you look at the first picture in my original post

来源: 于 2016-02-04 09:45:45 [旧帖] [给我悄悄话] 本文已被阅读：次

There is no 软管. 

I hope this is not the wrong installation.  There was never a problem with the dishwasher drain or anything.  The dishwasher drain did not cause any problem to the sink, unlike some people have experienced and mentioned in JT.

It seemed the dishwasher was installed in the right way.