Thanks for your responses guys,
@Slayed, I'm pretty sure it's all dried out, but regardless, I can't imagine that there could be enough water to increase my yields to almost double what I was expecting
@Melodic Catastrophe, Thanks very much, that's very helpful. At this point though, I already have freebase DMT (I added the sodium carbonate as well), and so I'm thinking that a lot of my contamination could be sodium carbonate? Is that likely? I have a hard time imagining there's still that much fumaric acid, as the sodium carbonate precipitation reaction allowed me to pour off the remaining water, which I would imagine dissolved most remaining fumaric acid. Is that reasonable? Or is fumaric acid usually a pretty consistent contaminant?
Also, the cold temperature of the water could explain why so much of the sodium carbonate crystallized out with the DMT.
What if I were to use dry acetone to dissolve all of the DMT (a pull, rather than a wash), which should not dissolve the sodium carbonate, but will dissolve the freebase DMT, and then evap the acetone?
I'm just brainstorming here.
@DoctorMantus, No I muffed up and forgot to take pictures

I could take some at this point, but all that you'd see is white powder haha.