i was going to buy this, but i had some concerns, the exact ones weedhound just perfectly described. Personaly i think they should have incorperated a flood and drain into this so that there is a main res of all the water so u can test for tds and ph, also i was concerned with nute build up, if your nute levels are too high and your experiencing some burn, how can u flush them? like stated above u would need shut off valves and such, but it seems that u would have to dump out each one individually because u would over flow your main res.... seems like a pain in the ass yet advertised for easy use. I wouldnt think so.