That inspector doesn't seem to be any more familiar with the correct terminology than the broker was!
To anyone familiar with correct terminology, the term "macerator" (short for "macerator pump") refers to a separate freestanding PUMP that has a macerator blade in it, commonly used to dump a holding tank. No one would call a macerating electric toilet just a "macerator"...nor would anyone refer to a treatment device as just a "macerator" (or a pair of them). You're quite right that doing so would not only be confusing, but totally misleading.
So what you really have is a macerating electric toilet and a Type I treatment device, which is entirely legal in all waters not specifically designated to be a "no discharge" zone (NDZ).
And btw, if you check the exploded drawings and parts lists for the ElectroScan
ElectroScan owners manual and PuraSan
Raritan PuraSan EX owners manual , I
think you'll find that both only have ONE macerator blade, that you're mistaking the mixer impeller for a second one.
--Peggie
"If you can't explain it to a six year old, you don't completely understand it yourself." --Albert Einstein