I looked in the 2nd place for soap in our dishwasher and it actually has stamped in there "for prewash"... So, in a convoluted way I could almost be right if we actually dialed up (punched in) the prewash cycle which sounds to me like two washes.... which I thought all dish washers did automatically... I bet they did 40 years ago. Then again, we rinse and even wash some items with regular soap just about everything that goes in the dishwasher .... and then just run it on the short cycle....