The first RDWC system is complete. I didn't have the camera today to take pics. I made a big change, and added a top feed component. The water is fed in via a top feed stream, and drains back to the res via a 3/4" hose with tee's to the buckets. It's now a Top Feed Recurculating Deep Water Culture system, or: TFRDWC. LOL. I figure the top fed water cascading through the hydrotons in the basket bucket lid will only add more O2 to the water. I am keeping the water level an inch below the bottom of the basket. This way, if the air pump should fail, the suspended roots will still have access to air. I also placed a second pump in the res, feeding a horizontal PVC pipe 2" above the water line with a dozen small holes facing down, blasting the surface of the water with jets of high pressure water. This adds major air to the res water. And, of course, there's an air stone in each bucket. We're stoked with the design. So much so, that we purchased an 8 light T-5 just to light up these 8 buckets. The plants will then go onto the table, then the floor. Each station has slightly more spacing between the buckets.
I really want the bloom room buckets to be movable, but it's looking less and less likely. Hopefully, with some trial and error on veg time and training, we can make sure the finished canopy size evenly fills out the area Helper D can always Bush Whack (use Bushmaster) any plants that look to be getting to tall. Wew're figuring 8 plants for every pair of 1000 watt HPS's in the bloom room. This would be slightly more than 2 sq ft per plant. This is much less space than our current plants are using. When we were getting started we had just a few plants, so we wanted them BIG. Now, it's time to carefully calculate finished size. I've always had better yield with more smaller plants, anyways. We'll be throwing away quite a few plants in veg to make sure that when room opens up in bloom, the new DWC plants have a place to go. The transition is going to be a bit of a cluster fuck. But, with a perpetual harvest, as long as the bloom room is always full, you're doing the right thing.