Quote Originally Posted by Dimebag
i see this part in many aeroponic systems, i dont know whats its use and how to use it. I really dont think its neccessary but i dont want to take any chances when i build my own. thanks.

The first pic just shows an aero system, the second shows the part i want to know about.
Howdy Dimebag,

It looks like ya could use it for connecting a series of rez's,and possibly empty the tank..although it kinda seems funky,to empty the rez,with the jets spraying at the same time.