Also, I would like some feedback on my redesign of the 1/2" PVC Wye.
I am planning to take the final design to a plastic injection molding company, and from all the general feedback I have gotten, the general verdict is that people want the wyes to be clear, have a direct connection to 1/2" PVC Couplers (see image below), and have better dart feeding because of a gentler slope and a dart ramp.
This is what my first iteration with the direct connection looked like:
![Posted Image](http://3.bp.blogspot.com/-B_a73LoIiB0/UP1N99Cp_bI/AAAAAAAAALs/Xf4GqTjWq78/s320/IMG_2248.jpg)
I then went back to my design software and I shortened the wye (to save plastic) and set out to adjust the slope and to construct the dart ramp.
I demoed the new design in this video:
http://www.youtube.com/watch?v=Dva1EPx36Co
Any questions or feedback would be great,
Thanks