Heaths Flooded Tube Vertical

W

Wrams

Member
WWShadow said:
How hot were you running your nutes? somewhere in the beginning Heath states that he never get over (I think) an EC of 1.5! I dont know that he ever stated what his nutrients were.
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I've seen threads by Heath where he says EC 1.2 is what he trys to stick with. Less flushing at the end to :)
 
WWShadow

WWShadow

Well-Known Member
Wrams said:
I've seen threads by Heath where he says EC 1.2 is what he trys to stick with. Less flushing at the end to :)
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yeah, that was it! I knew it wasn't real high and he got massive results! so why mess with all the complicated stuff when NFT can get those kind of results...
 
W

Wrams

Member
Why does Heath mess with all the complicated stuff...? I'll tell you why.... He loves designing and building new ways to see whats best for growing his much loved cannabis :D its a hobby and thats everything and you can see that in his threads/diaries etc. I wish I knew half of what he knows because with half his knowledge you'd be a true master. Heath is the best grower I've ever come across and I've come across a few in my 40+ years on this planet ;)
 
tenthirty

tenthirty

Well-Known Member
WWShadow said:
How hot were you running your nutes? somewhere in the beginning Heath states that he never get over (I think) an EC of 1.5! I don't know that he ever stated what his nutrients were.
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That,s the funny part. I never got above 1.6 EC on the first run. On the second run at 1.0 EC. PH dropping and EC rising. Right now I'm running at .7 EC and before top off EC is at .8 and after topping off the rez is about .68EC. Before the flush PH was dropping from 6.0 to 5.4 in one day. Last night I left everything alone at a PH of 5.2 and and EC of .7. We'll see where everything is later tonight at lights on.

I have a hypothesis,

I go from rapid rooters > ebb and flow > octagon.

In the ebb and flow table EC was about 1.0.
What I'm thinking is that when the sweet little babies go into the octagon, 1.0 was way to hot, thus burning the roots. First time "here comes root rot and bacteria". EWC tea to the rescue, but a little too late. At this point I hadn't even thought that the starting EC was too high. Nor did I know about adding enough cal mag.

On run 2, in the octagon the babies started out at an EC of 1.0 and never let it get above that, but still not enough cal mag, maybe 10 mil in 30 gal. Added 10 mil of big bud at res change, still keeping EC at 1.0 and the leaves just started burning away like a mag or maybe a P deficiency. This is at 5 weeks. Then they stopped eating both water and nutes. Did a complete flush for 5 days until the .2 EC started to drop. Now they are at 3 mil/gal cal mag (.2EC) and then to .7EC is Canna aqua bloom with no additives.

They appear not to be getting any worse, but not really better either. They are at week 6 now and it may be just to late. At least it will make some bubble.

So when the next run goes into the octagon, the starting recipe will be:

RO
.4 EC cal mag
remainder to .6 EC Ionic Bloom.
Protek silica for PH up as needed.

What do you think?

I've already screwed up 2 runs in this thing and my ebb and flow flower tables are working great with GH 3 part at 1.2-1.4 EC.
 
WWShadow

WWShadow

Well-Known Member
Between 5.5 and 5.8 is supposed to be optimum for Hydro. Your ph should be pretty stable if your rez is large enough. 5.2 is close but I wouldn't want mine to be that low. Once I get under 6 is pretty much let it sit because I have 2 cheap ass ph meters. I can calibraate them both with the solution and them in the rez they measur one a bit hi and the other a bit low. so if the low one is 5.4 and the hi one is 5.8 I call it good. You're gong to need some one with more hydro experience than I have. there used to be some really knowledgable hydro guys on the thread but I haven't kept up with who is still around. You should try the sick plant section and post it there maybe some one can help nail down the problem!
 
W

Wrams

Member
pH 5.5 is to low for me I like to keep my pH at around a pH of 6.0 in hydroponics and an EC of 1.4 max. Thats me though :D

Something else to consider when having pH problems is the clay if your using that because large amount of clay can cause Ph instabilities in any grow.
 
tenthirty

tenthirty

Well-Known Member
I found this over at IC mag.
Is the ph of 5.5 to 6.0 or 5.1 to 5.9 the correct answer Hmmmmm..

I wonder what kind of ph and ec swings Heath sees.


**Added by: MisterIto**Last edited by: 10k**Viewed: 588 times
**Rated by 43 users: 8.77/10
I follow and highly recommend the following parameters for hydroponic nutrient solutions for aeroponic, “bubblers”, drip, ebb and flow, NFT, passive, rockwool and wick systems.

PH 5.1-5.9 (5.2 optimal)
TDS 500-1000ppm, EC .75-1.5
Temperature 68-78f, 20-25c (75f, 24c optimal)

The pH of the nutrient solution is a major determinant of nutrient uptake by the plant. If the pH wanders outside the optimum range of between pH 5.1 and pH 5.9, then nutritional deficiency and/or toxicity problems can occur. For hydroponic nutrient solutions used with inert media, keep the pH at 5.2 for optimal elemental uptake. It is at this point that roots most readily assimilate nutrients. These pH and TDS/EC recommendations may seem low relative to the normally suggested range, but are based upon information garnered from "Hydroponic Nutrients" by M. Edward Muckle and Practical Hydroponics and Greenhouses. They both document the low pH resulting in increased nutrient uptake and my experience has shown discernible health and yield improvements at a ph of 5.2 over higher levels.

On page 100, Hydroponic Nutrients displays both the assimilation chart for organic soil applications and another for inert medium hydroponics, which depicts the vastly different scenarios. The widely accepted soil based chart is frequently misapplied to water culture applications. His research and that done by others, documented in Practical Hydroponics and Greenhouses, indicate that iron and phosphorous precipitate in nutrient solutions at pH levels above 6. Stay below a pH of 6 by all means to avoid this problem and benefit.

The nutrient assimilation rate is further enhanced by the reduction in solution TDS/EC, which reduces osmotic pressure and allows the roots to draw the nutrients "easier". Young, established seedlings or rooted cuttings are started at 500-600ppm. The TDS is increased to 800-900ppm during peak vegetative growth. During the transition from early to heavy flowering, TDS is further raised to 1000-1100ppm. It is then reduced to 400-500ppm during the final 2 weeks of flushing. The plants demonstrate their preference for a lower TDS/EC when running a lower pH by clearly sustaining higher growth rates.

The optimum temperature for hydroponic solutions to be is 24c/75f. At this point, most elements are assimilated highest and atmospheric oxygen is most readily dissolved. Although increases in temperature increase the rate of photosynthesis, avoid exceeding the maximum listed of 25c/78f. Elevated temperatures make some elements more available, but reduce the solution's dissolved oxygen capacity, increasing root disease likelihood.
**Last modified: 05:15 - Nov 14, 2000
*
Quicklink:**http://overgrow.com/growfaq/73
GrowFAQ © 2000-2004 Overgrow
faq:73 "What ranges should I maintain for my hydroponic nutrients pH, TDS/EC and temperature?"
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B

BLOCKER

Active Member
WWShadow said:
You would definitely want to have a way to tie them up so they don't tip over and fall out. I'm not sue how well the 2in collars would fit with the round pipe but I know the three inch won't work with out the net cup at least and you still have to tie the plants up. Using the Hydroton in that typs of system is only going to help as it is a "fast water" circulation system
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the collars wud still be in 2" net pots, u still don't think they will be strong enough to hold the plants?
 
S

slink456

Member
hey man love your set up , i really wanna try this set up but i just don't get a few things. How do the dams work exactly? I get that they flood the tubes to your desired level , but how does it drain if the dams are blocking a specific amount of nutrient flow?
 
S

slink456

Member
hey man love your set up , i really wanna try this set up but i just don't get a few things. How do the dams work exactly? I get that they flood the tubes to your desired level , but how does it drain if the dams are blocking a specific amount of nutrient flow?
 
N

nanobud

Member
slink456 said:
hey man love your set up , i really wanna try this set up but i just don't get a few things. How do the dams work exactly? I get that they flood the tubes to your desired level , but how does it drain if the dams are blocking a specific amount of nutrient flow?
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Once the water reaches the dam levels, since the pump is constantly running, additional water keeps coming which overflows the dams down to the next level. The sloped pipes ensures the water overflows in the right direction.
 
G

Grow4Flow

Active Member
Ive read through this whole thing and I am flabbergasted, I would like to get started on the build but can someone tell me what the length of each straigh pipe is? I don't remember seeing this measurement. According to the Octagon calculator that was posted, to have the inner area (R) to be 4' means the outside ends up being 7.5' and im trying to build something to fit in a 5x5 tent.
 
jigfresh

jigfresh

Well-Known Member
I don't think it matters what his measurements were if you are doing something different. It's time to start drawing some careful plans. I hope you took drafting in high school. ;) Let me know if you need help with the drawings, I could probably be of some use.

And yeah, Heath's set up kicks ass. My mini mini version treated me really well.
 
G

Grow4Flow

Active Member
jigfresh said:
I don't think it matters what his measurements were if you are doing something different. It's time to start drawing some careful plans. I hope you took drafting in high school. ;) Let me know if you need help with the drawings, I could probably be of some use.

And yeah, Heath's set up kicks ass. My mini mini version treated me really well.
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Thanks for your response and offer Jig, but I fiugred it out. I just wanted to know what his measurements were since he did give the other needed measurements to scale it down. thanks again.
 
G

Grow4Flow

Active Member
im just about done constructing this system out of 3' PVC pipe, does anyone know where to get the pipe clips in the states?
 
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