What is a SOAKING AGENT mentioned in the manual for Bosch washing machine. Is SOAKING AGENT same as detergent? So do you put some detergent in that receptacle, and some more detergent in the left receptacle? I have a Bosch Axxis ELF 2050. I just put the detergent in the left receptacle, with a warm water setting. Not even lightest stain is removed!! Am I supposed to add A SOAKING AGENT too? And what on earth is that? I miss my Maytag! Simple and great!