This thing sounds pretty slick if the advertising is true.... $65 for 2000ml liquid is pretty pricey though--- especially when it is a single use fluid. THANKS!
Seen everything from powedered and liquid dish detergent to single use cleaning tabs, tap water, stone remover, all kinds of stain additives.
Try it with the liquid it's supposed to use, and the metal beads. Then see the difference for the way you work with different substitutes.
If you want to get fancy, put a chemistry lab stir plate on top to get things moving in the liquid.