Still trying to decide on how many buckets. Largely depend on where I end up growing. I have a 5 x 5 tent (but not sure I got all the connectors when I moved, may have to construct a frame), a 4 x 4, and a 32" x 32". But I am considering using a bedroom. The bedroom is about 9 x 11. When I used a bedroom before, I made up moveable "walls" with PVC and panda film to keep the light contained and provide a reflective surface around the plants. I am thinking of a system with 6-9 buckets, plus the control bucket and res. I have done a lot of DWC, but no RDWC as I always did a perpetual harvest and had plants going in and out of the flowering room at different times. Then when I moved to Oregon and could grow outdoors, I started growing organic. I do have a love of water culture though and decided that I want to try a RDWC for my indoor winter grow. Dealing with individual buckets can be a PITA and I'm getting old, so looking to a good recircing system. I am interested in hearing more about the uppercurrent and the hi-flow jet propulsion. Although I have seen systems with the waterfall effect, they looked different than what you have. Yeah, I am not interested in any of the cheaper systems on E-Bay or Amazon. I'm pretty handy, a retired master plumber, and I'd far rather construct a system myself. I figured that I can build something for around $400 or $500. I certainly welcome any advice and help you can give me.