Quote Originally Posted by BlazeIdo
I just researched the gravity rez and float valves so that cleared that up. I do have one more question about your system though. The water in the control rez is kept at the exact height you want the water in the buckets at correct? So then where does the water pump get incorporated into moving all the water around? Is the pump just in the rez split four ways into the white tubing and then clamped off at the end and then split again into the buckets? Hope that made sense. Peace
Blaze, the water pump sits inside the control reservoir. One end has a prefilter and sucks water from the reservoir. The out of the pump is 1/2" tubing which goes into the SINGLE 1/2" feed line. The feed line is then split into 4 lines afterwords. The end of the each 4 lines is capped and the 1/4" barbs get put into this. You could remove the pump from the reservoir and use 3/4" tubing to draw water from the reservoir but I have a chiller and it keeps the noise down.

Here are some updated pictures. We are a little over 3 weeks into bloom. CO2 is 1500ppm. temps are 88F. Humidity is 55-60% in the day, 35% at night with 72F.