A drop of Jet Dry in the tank significantly improved wetting and drying of records, but did not remove as much grime as expected. I did add one drop of my preferred detergent and that did remove more grime, but not as much as vacuum cleaning yet. I will see how many cycles it takes to get a representative disc as clean as a single vacuum cleaning.
I'm hauling out old family discs that are at least 25 years old and never cleaned before as my test set. Even if the process is automated, spending 30 minutes per disc to clean representative discs is less than ideal for me.