I had the same problem on our Tool Room mills with the smaller sump. I had to two fold reason for this, but I had the fab shop at our facility break some perfed metal, .25 holes .125 spacing, to fit over the sump. It keeps chips out, delrin specifically, and breaks up the flow of coolant from the return in the bottom of the pan rather than letting the coolant splash into the bottom of the sump. No more slippery or sticky floor. Don't know the config of the VF2 but perhaps that might give you some ideas. The key to stopping the slight splashes that turn into puddles after a ten hour day was to diffuse it and breaking up the flow.
Suppose you were an idiot and suppose you were a member of Congress. But I repeat myself.
Mark Twain