Wait a minute, are you using 3 versa pumps to do one task? That's insane! Hehe... what do you need so much flow for? Or was that just to test it out?
I am using this system to replace about two gallons of water everyday on my ATO. However, the main reason was for curiosity reasons. I am running DOS on the AWC system and I might be looking at switching over because the Versa is SO much quieter.