If you don't like wasting material, consider how much your cleaning costs and how much waste is generated. I have a cup of mineral spirits that I have used for a bunch of chains...probably around 1 to 2 dozen. That could be up to 84,000 miles of bicycling. I use it once at the beginning and that's it. No other cleaning, no other waste. If I need to refresh the mineral spirits...you lose some when you use it...I pour it out of a can of mineral spirits that I bought before 2000 and for which I paid around $10. I still have most of the can left.

Now compare that to your cleaning system. You clean every 800 miles or 18 times over 15,000 miles on the chain. Your ultrasonicator takes about a liter to use it, so that 18 liters of cleaning solvent for which you had to pay something...let's say $10. The ultrasonicator you linked to cost $60 if you are lucky enough to find it on sale or $195 full retail. Even at $60, you've invested more than I have in my cleaning "system"...a used Gatorade bottle.

Doing the math, I've used 4 chains to your one which costs me about $60. My cleaning system costs me $10. I'm in for $70 and, roughly an hour of my time over 4 chains.

You paid $14 for your chain, $10 for degreaser, and $60 for the ultrasonicator for a total of $84 and from 4 to 18 hours of your time. Plus you have generated a bunch more waste to be disposed of...it really shouldn't be flushed down the drain...than I have.