Cap is that month and a half veg time in that system? or do you veg in a seperate area and move them into that room to keep the flower cycle constant ?
Lots of guys had pythium prohlems with that system ever had issues?
Yea doubled is a polarizing cat. It seems that many Farmers built out his system to find his claimed results not very reproducible . . Like guys with mad experience and good genetics could get 1/3 maybe 1/2 his claimed yields.
I veg in a separate room and then veg them again when I move them for a week or two because of the massive amount of light the plants need to get roots out before they will start growing, so they stall for a week. Then they will put out new growth and start taking off quickly.
I have not had pythium in the system (knock on wood). I have had stem rot but I believe this was from fungus gnats spreading a bacteria coupled with overwatering. DD was top feeding the rockwool 24/7. I do not do this anymore. There are a few things I have tweaked since I built his DIY based on my own observations.
1) I use chow mix in my net pot. I found that plants in chow are much more resistant to root issues compared to plants in a 4 or 6" cube surrounded by hydroton. I do not like mixed media. The rockwool takes far longer to dray out than the hydroton so this setup makes no sense to me. I changed it after all the plants in rockwool got stem rot once cycle, and all the plants in chow (in the same system) did not.
2) I downsized my main drain so that it is full when the system is running. This keeps the pipe clean. No build up at a the waterline. My drain is a 2", and he was using 4".
3) I need bigger drains. He had (2) 1" drains, and mine get clogged with roots at which point I have to tear them out, which leads to stress and possible infection.
4) I keep my chiller at 64 degrees, and I run a live res with bennies not sterile.
5) I feed like 1/2 of what he was feeding with AN.
6) I only water by hand once a day when I move the plants in to the big room. I killed off my top feed. It is unecessary after a week when the roots hit the water. They will wick the water up on their own. No need to top feed. I do crown feed concentrated EWC/benny tea 1x per week just enough to saturate the chow.
7) I changed the 10" net pot to a 3 gallon EZ root aeration frame.
8) I suspended my cages from the ceiling, and I use a lot of yo yos.
His strain could easily have done 4#. He was working with that g-13 monster. The colas in his pics were all the size of wine bottles. I have hit 2# with small yielding strains so I don't think he was bullshitting. Look at the numbers DS is posting in his quantum grow. Very similar and nobody is calling him out.
I do not think there were any more failures with this system than there are with any other RDWC. It's not easy and it's not forgiving.
The best advice DD gave was to run the same strain for a year.