I have a Vastex DB 120. It's the smaller version of the Econored. I use it for Discharge and Water Based ink. It works great. On the Econored 1 you can get a Scrub Air Option to assist on the Water Based Stuff.
Mine keeps up with me, I've been using it for 5 years now. Great piece of equipment...
For Discharge and Water Based, I slow the belt down, Raise the heating unit. Run through once.
My whole shop is Vastes. Screen Machine, Oven, Exposing unit..