Torog.. I agree.. It looks like a place to hook up an extra resivor...Hydro stores sell these floating valves that work on gravity... when the main reservoir is low the valve pops open and lets water in from the back up reservoir (which is higher than the main reservoir) gravity pushes the water in.. : )






I think

hahahah
SMB
Garden Knowm Reviewed by Garden Knowm on . whats this part for in an aeroponic system? (pic) 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. Rating: 5