need your help Sulfure Denitrator set up.


New member
So i just bought GEO reactor and tried to run Sulfur Denitrator on it.
How do i get water inside ? which tube do i use( black or green). Also where is water come out?? Also what is small valve on other side pic 2? What that for..
Is that enough media for it or i have to fill up full tank.

Thank for your help