Nice build. Are you running any kind of chip filter for your flood coolant? Can the chips drain to the coolant tank?
What are your plans for the drain situation? You can either add an extra one on each side , don't know if you have one on each side or not , or just tear that one out and add a bigger one. I went with 2 small drains as well on my initial enclosure, one on each side, but I had a little pump so it was enough. When I upgrade my pump, I also had to enlarge the drains unfortunately, but that what we get for going too small to start.
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