Ver 1.1 changes: Reduced opening size at bottom of cup so the syphon will draw more of the fluid out. Changed position of tubes inside center tower to improve function after printing, less chance of cross flow or leaking.
Update: I thinned the cup walls and removed much of the base for a quicker print and less wasted space for smaller printers. This is still a high flow design and should empty rather quickly. I am still working on improving the design. Any advice or requests are welcome.
I used scad to improve this design. I lowered the center pillar, increased the pipe diameters for better flow. Reduced the outlet pipes in the base to improve printing.