J
Janus
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Janus thanks for posting your finding and research. Amazing!! Not only your finding but the system you got going.
I reviewed the entire thread and I Got a few questions for you.
In your veg system I can see a vertical pvc pipe. Is that for plant support or for air circulation. Obviously via your flowering pics can not tell if there is one in the flowering setup. Nice trees.
Is your nutrient is re-circulating?
if so, what give the nutrient power to return to the res?
Any recommended brands of do meter?
infrared thermometer?
For plant tissue testing did you use a kit?
any recommendations? (for tissue testing)
Thanks for your time.
Curious why you dont use #4 grade perlite ? Do you just T off the 2 1/4 feed lines that are going 24/7 and put a dripper at each end of the T? That is how I would do it..but I've also never done it before and don't know if it would work till I tried! I'm still playin in dirt boxes...but this winter..it's on.
Machine destroyed, eh? That sounds like internet folklore. Sunlight just got a massive delivery of the stuff a few weeks ago. At least 3x over the last 5 years they run out and get severely back-ordered. Eventually they get caught up.
Ideal EC for flowering is very plant and time specific. Some only max out at 2.0 and others up around 2.7. One of the biggest benefits of a recirc system like this is you can monitor the solution in real-time. When things are balanced EC slowly ticks down while PH slowly ticks up. After the flip stay on veg nutes till ph starts moving slowly down. It means they're starting to chow the P & K.
70% throughout the entire cycle is about right. Just be prepared for the big RH spike after lights out. If running at 70% during the day with the room full of vegetation the RH will easily hit 85%+ within a couple hours of lights out. Vent or run dehueys to handle. I usually start both just before lights out and pull to 55% for the last hour so to get a head-start before it jumps.
Love the Big and Chunky.
How did I miss this thread :D
Janus curious about your Co2 comment, I personally air cool my rooms no co2 enrichment other then whats outside but I noticed you mentioned 1000 ppm max bottled would you say you get maximum growth rates and save 50% on co2 costs by doing so? does going from 1000 to 1500 ppm require more co2 then going from 500-1000 ppm?
One part per million is one part per million whether it is in a group of 5 ppm or 999,000 ppm. JK
to preface my question, i know gpw is very strain dependent, and on all factors. what's your peak gpw? i've read of dtw systems in soilless that achieve 1 gpw, watering every 3-4 days (not 'optimum' DO). it makes me wonder how necessary it is to water 24/7. i'm sure it keeps the lines from clogging - does it increase yield? tia
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