How to clean "no clean" flux with a 3L ultrasonic cleaner
From the data sheet of this solder:


  Cleaning:
  Glow Core can be cleaned with saponified tap water or an alcohol and water blend. AIMTERGE 520 is recommended. A water temperature of 60ºC (140°F) is recommended, and should be adequate for removing any post process residues.


Rubbing alcohol and water is cheap. I would go with the OEM's recommendations.
If you have problems or issues, it would be cheaper to switch solder than buy an expensive cleaner. 

I am not fond of water wash solder, but that gets off into opinion territory. My .02 YMMV