So is pouring 55 oz. after you can take the lid off. You need to keep all of your baths at about 100F, some more precisely than others. Use the instructions for small tank processing, and follow the directions on top of the Agitank about agitation direction. Failure to do so may cause problems. Wear rubber gloves when using E-6 chemicals, by the way.
Agitation causes a little to come up around the edges.
After you finish, you can let the film dry in the Agitank's racks. It may have a blue look to it, as if you screwed up. If your Agitank IS unusable afterward, consider it a blessing.