It is video a show and explaining why your dishwasher is not cleaning correctly. this procedure will work with modern dishwashers, including Samsung, KitchenAid, LG, whirlpool and Bosh dishwashers. These dark dishwashers have filters that need to be cleaned on a regular basis. Also, the Jets can get clogged with dirt and debris that needs to be cleaned out. 
Also, be sure that you do not have any large items that would block the lower jet from hitting the soap dispenser.