This is a few weeks into the grow but is a Good idea of How its setup.
The Bucket system:
I have 1 Inch drains from the 4 buckets all linked to a “waterfall effect” (Additional O2 Generation) into reservoir which is outside the tent.
There is an inlet line from Bottom of reservoir to a pump which pulls from reservoir into tent and up to a “T” That T section is split again at each bucket this forming a top fed free fall waterfall effect (for initial O2 generation) into each bucket. (See center of the picture)
The weight of the water plus a small raised platform is enough to drive the water back to reservoir.
Each bucket and the reservoir was then was given Air stones (Vivosun 4x2 inch) for added O2 for the roots system.
I keep ~30 Gallons in the whole system with Pump and air running full time. The water temps stay between 67-72.5 degrees with the use of a single gallon jug of water that I rotate out every 8 hours or so. I should mention I used 7 mm thick insulation that I have wrapped my Reservoir up in from Home depot to help keep temps stable. I went with a higher gallon amount to offset for later growth and for more stable PH/Temp/EC balance.
PH Stays between 5.8-6.1 Depending on the nutrients or week I only allow minimal fluctuation.
EC is running around 1280 these days but I am following a pretty strict guideline from General Hydro based on an RDWC system.
The Lights, Humidity Stay between 35% RH- 48% RH and Temps During day Are a steady 78 degrees. At night when lights are off they drop down to 69 degrees. I run an 18 on 6 hr off cycle since the seeds are Auto and Feminized.
I have A single Vornado and 2 smaller fans+ a heater+ humidifier (ultrasonic) all are on timers except the Humidifier which is manual intervention.
The A/C infinity system keeps the temps and RH pretty stable which is also set through a carbon filter.
For Air inlets I just have two 6inch Ducts one at the floor and one at the light level for a more natural airflow effect, plus I do check on the ladies a few times throughout the day. I used black Panty hose to cover the inlets so bugs would not get in.
A Did do a wet run without the plants for a full 3 days before even starting seeds. -Just to iron out any issue and dial in the temps, humidity and VPD before going “live”.
For the seeds I went with the Napkin method. Got 4 out of 4 to pop.
Last Picture is from a few hours ago.