[header] How to use dishwasher salt [title] Remove the bottom rack to expose the salt reservoir. [step] Pull the bottom rack out completely and set it on your kitchen counter. You may need to lift it up slightly to unclip it from its rollers. 
Your reservoir will be on the bottom of the dishwasher, probably off to one side. If you don't see a reservoir, your dishwasher may not have a built-in water softener.