I haven't played around with temps but now I'm wondering. I get pretty fast results running at 75 Fahrenheit but I wonder if it improves with even warmer temps. The 50w heater I have could probably bring things up to 90 or better. Maybe on this next run I push the envelope a little. Anybody want to throw their opinion in here? So far, I have the general consensus that warmer is good. I'm willing to jack it up if the experts agree on the idea.
I haven't played around with temps but now I'm wondering. I get pretty fast results running at 75 Fahrenheit but I wonder if it improves with even warmer temps. The 50w heater I have could probably bring things up to 90 or better. Maybe on this next run I push the envelope a little. Anybody want to throw their opinion in here? So far, I have the general consensus that warmer is good. I'm willing to jack it up if the experts agree on the idea.
well done rocketman, good tute... nappa 8822 floor dry is pretty good ($6/35lbs).
rez temps were proven to not make much of a difference by 'ImaginaryFriend' a few years back, he was PPKing in 90+*F and was being successful. as 'the man' (D9) once wrote (paraphrased) nute solutions temps in typical hydro is important because cooler water holds more O2. the PPK does not have a requirement for O2 in the solution as O2 is supplied by the retreating water 'pulse/flood' to the PPK. just saying and I thank him every chance I get.. sounds corny but the man is good.
Ya know, I just realized something after reading your post. I don't think I need the goofy air pump in this thing. I was concerned when I first built this the solution would sit too long with no aeration between cycles but hell, 90 minutes isn't long enough for anything nasty to start growing. I should have picked up on this a long time ago but for whatever reason, I got stuck on making sure the solution was well aerated.
At one time, I tossed around the idea of putting the air stone directly into the bottom section of the tailpiece. That would certainly supply an ample amount of air into the roots but honestly, I'm not sure it's necessary.
Maybe someday I'll grow a plant with the air in the tailpiece just to see if it aids growth in any way. I keep picturing how some of the aeroponic systems work with the way they mist the root system. I'm thinking the air rising through the tailpiece into the grow medium would really saturate the root zone with O2. It may also cause the medium to dry out too quickly or cause the capillary action of the floor dry to change in some way. Who knows, maybe it would actually act to 'super-charge' the root formation. Or more likely, I create the perfect Plant Killing Machine! (PKM?).
I'm pretty sure the air pump is completely unnecessary in the system. If you are reading this thread and thinking of building one of these, leave the air pump out of the build. Thanks Snook and Delta for the awakening.
WELL DONE!
Actually, I think you put me onto something I may be able to use outside or in a greenhouse.
Now lets see if I can find Deltas thresd.
I try for 78*F-80*F, day, 70*F-72*F, night... humidity,,, 55%(+|- 5%) both D&N. night time exhaust goes 15min every 1.5-2.0hrs. the PPK, I think, will continue to feed/give the plant what they want at higher/lower temps.. but bud density suffers as temps go higher, IMO. leave those 90*F behind, Imaginary Friend, did it, I believe, just to be contrary... he was good to have around..
rocketman.. I was talking air temps, when you were talking water temps.. sorry...
Hi Rocketman!
Sweet grow in a small space. Very nice job adapting the Master's work and explaining it in such a clear and detailed way.
You didnt mention the dimension of your grow space. My little cab's flowering side is 32h x 27w x 23d. What's yours?
All the best,
OO
Rocketman64:
Questions: Did you use microkote in the tail-pieces to control roots? I had roots clog 2 tail-pieces. Working on way to change out a tail-piece but microkote would less work.
Thank you,
-
ICRSN