Ecomike, I have a masters degree in area studies, not physics or engineering.
When you doubt a technology, it raises TWO red flags in my eyes because I genuinely believe in your DD/opinions.
I also don't understand how the ews system can rid of ammonia from water. BUT I do know that if a Jewish fish farmer purchased the system, then something must be legit. It's hard to put an equal sign between Jew and fool somehow.