I'm not sure about other Whirlpool models, but this one has the dispenser that simply sits on top of the agitator cap. It has a note on it to "Rinse after every use". I've done just that and never had a problem with gunge or slime.
Double-Duty Action
I've read this site for several years, but never joined. This topic gave me push needed to sign up. I've got one of the last belt-drive whirlpools made (Serial number [C70125605] says 1987) that has the winged double-duty super surgilator in it. I've found it to have great...