When my son went away to college (he has an apartment-style dorm), I bought him those cascade prepacks. You just put one in the dishwasher. When he called to ask me what could make a dishwasher overflow, I was baffled because I was sure they used what I bought. I asked if it was water? He said no, bubbles. Well, another roomate loaded the dishwasher so Josh yelled at him and asked what he used. The reply was Dawn. I laughed so hard, I nearly cried. I explained to him how you should never use dishwashing liquid or Tide, etc. in the dishwasher because that stuff is very (can't think of the word now - like condensed). I'm sure he filled up the container. Oh brother!! I told him to run another cycle without soap and show the other guys where he kept the Cascade prepacks.