hmmm, thanks for the advice! nice vids too.
I think my next upgrade will be either one of those kinds, with a control bucket/central rez kind of thing. At the moment i have 7 individual DWC buckets running, so that would mean 7 pumps to do drip irrigation from the top down like that... hm. I will have to consider modding the system I have though... Its a little bit of a pain to check each rez every time, though I have found that the PH has buffered quite nicely, and I really haven't had to add much in the way of nutes, as they are staying pretty even in that sense as well. I'm running the nutes I got, Flora Nova Grow, at about 1000 PPM, basicly 3/4ths of max. i got my largest one up to 1300 (max) and it got very slight symptoms of too much nitrogen, slightly inverse cupped leaves and dark green, so I eased back a bit to 1100 and its going crazy. I think I will let the water levels drop down a few inches at least though, and that will save several gallons.
I'll give Elanor's VF 11 a try when I run out of this stuff! I've had similar thoughts on Veg nutes, but haven't taken the plunge!