2L Hempy Coco Coir

2L DWC Coco Coir

This is Berry Bomb, a test subject for the new setup; 2L DWC Coco Coir Hempy. If that makes any sense. Very easy to make one.

The bottles are sitting in a 4x4 flood tray any access will be safe. Then I use a siphon to take out the water from the tray.

This is Berry Bomb. The stem is so thick and grew much faster than the bottles without the DWC upgrades. All due to the roots have more space to grow into and the available water/nutes with higher ratio of water & oxygen will equal explosive growth.

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  • Take a 2L bottle and cut in half. You'll be using both pieces the top to hold the plants above the reservoir, and the bottom is the reservoir.
  • Put holes on the top piece only for roots to grow out of. Can do this with a hot knife it will go through the plastic very nice or a not nail. Remember to put some holes on the bottle cap too. Leave it in place.
  • Sit the top piece inside the bottom piece upside down like a cone. No need to secure it the weight of the medium (in this experiment I use coco coir) and the plant itself will hold the top piece down.
  • Make a hole on the bottom piece 2in down from the top. This acts as a "flood control" device, like those in hempy. I wanted high enough so the reservoir holds more water, and low enough that the water line does not touch the top piece. Also helps with replacing old nutrients and water mix with new without having to lift the top piece.

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Slowly upgrading all the bottles to 2L DWC Coco Coir Hempy. This method is a hybrid of many growing style. Now, we're set for 20g per plant. :Namaste:
 
Twelve12 said:
I've been experimenting by incorporating DWC hydroponic to the 1L hempy coco coir. Basically, the 2L bottle cut in half, the top piece is flipped upside down and place into the bottom piece. The top piece has holes for roots to grow through to hit the reservoir, and the reservoir has a hole for access water to flow out (2in down from the top), hempy DWC. The insert is still coco coir (inexpensive and it works).

Got the same strain in 1L and 1L DWC, the DWC has thicker stem, faster growth, over all with vigor on overdrive. I'm starting to add more 1L DWC to the room, not putting all the eggs in one basket yet. From what I see the plant in 1L DWC looks so good! Pics and info soon...
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I've done that with bagseed before on my first grow some years back. But I used 20 oz bottles and seed I had a huge female in 5gal dwc bucket and said what the hell popped 8 more seeds and used those sitting around the big plant on shelves it worked great
 
Hey Twelve12...stopping through your journal to see how things are going. I really really really appreciate the nomination for MotM contest, btw...:thumb:

I wish I knew about more than just soil growing so I could comment and follow along your journal more, but definitely I will be looking back on your jornals when I'm ready to increase my knowledge and try new growing styles.... you have excellent detail!!

Very cool idea on recycling old soda bottles and using them for hempy cups, awesome!!
 
Twelve12 said:
HerbFarma Hopefully someone with 2L soil grow can help you out. Plants in bloom will stretch 2-3x more when they are in veg. So your plant being 3ft will end up 5-6ft. Hope you got some head room. They will grow large. Unless you top 1ft off before bloom.
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Miscommunication bro! They are 3 ft tall and budding already. Stretch put them at about 3ft and they are in pure perlite hempies. I'm just planting some in 2L full of soil and was just asking about ur or anyone's experience with it

Tanx anyways though!! ::keep em green::
 
HighFlyin5 yeah the setup is nothing new. It is for me and the upgrade is needed. What are you growing in now?

You're welcome Icemud! Keep up the good work and good luck in NOTM. Yes the 2L bottles idea was from 420fied. Since then I've made my own recycling program. The community is donating their drinks to me now, lol.

HerbFarma oh, so 3ft isn't that bad. Good luck with it using soil. Best to use perlite & vermiculite or coco coir or combination of the three. Unless you've mastered soil growing it shouldn't be difficult.

Hash Hound I think it is fun to blur out unwanted advertisements from big corporations.

Thanks Siscokid
 
Your journals are always so fresh Twelve with new ideas flowing through and time taken to log detailed information to go with them, iv never even seen this done before and the use of minimal medium is very appealing in saving all that dolla.

I Have a question buddy

You will not be adding any bubble stones to the res so will this cause any problems with dissolved O causing the plants to drown?

Also is it going to hold them up when you have 50+g's suspended from a few foot?


Berry Bomb looks great bro cant wait to get mine going, does she have any distinctive smells yet?

:goodjob:


Edit: Seems i must spread some first :) Ill be back!
 
T12!!!

so what you got going here is a hempy DWC grow... right???
My question about this is, where does all the water sit??? and is it only the cap, when flipped, that is filled with coco??? and are you using a airstone in the 2L???

:peacetwo:
 
GodSpeed You will not be adding any bubble stones to the res so will this cause any problems with dissolved O causing the plants to drown?

No airstone needed. The plant will get fresh premix added to the reservoir when I water the plant every other day. The access water will drain out from the hempy hole that is placed 2in down from the top on the bottom piece of the bottle.

Also is it going to hold them up when you have 50+g's suspended from a few foot?

Yes, as long as the plant is not leaning from the heavy top. Otherwise may need a stake to keep balance. With the tray I can place the bottles close together so each is securing another in place. The tops has my concern when come to the last few weeks of flowering, some are too heavy they lean and can effect the light penetration of near by plants.

Berry Bomb looks great bro cant wait to get mine going, does she have any distinctive smells yet?

The older one already producing aroma of which I cannot describe. Some sweet fruit soap smell. Should be done in 3 weeks. This one here just started flowering 1 week ago, so no trich or aroma development yet.

Astonr420 so what you got going here is a hempy DWC grow... right???

Yes, that's right. lol

My question about this is, where does all the water sit???

The water sits on the bottom reservoir (bottom 1/2 of the 2L bottle) and the roots hangs from the top piece and grow into the water filled with nutes. No air stone.
 
Twelve12 said:
Astonr420 so what you got going here is a hempy DWC grow... right???

Yes, that's right. lol

My question about this is, where does all the water sit???

The water sits on the bottom reservoir (bottom 1/2 of the 2L bottle) and the roots hangs from the top piece and grow into the water filled with nutes. No air stone.
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so the roots are going to sit in that water??? with no movement??? isn't this a bad thing that can cause root rot??? I know little to nothing about hydro, this is why I am asking so many questions... this looks very interesting to me... I might give this a try!!! I just want to make sure that I am understanding everything correctly!!!
 
Nice set up! I dont 100% understand concept as i am coco or soil guy but am trying to understand hydro better. I guess this is a hybrid.....

So to get this straight. U hand feed every 2 days with pre mixed nutes. U fill pots untilrun off exits hole in outer bottle. The remaining water sits in the bottom of the bottle and the roots grow into it. How do u oxygenate the water in bottom as i am guessing when u hand feed it wont be enough to empty stale water in bottle and replace with fresh? Or is that not the idea???? Looks really, really cool though. Following with very keen interest......
 
Astonr420 said:
so the roots are going to sit in that water??? with no movement??? isn't this a bad thing that can cause root rot??? I know little to nothing about hydro, this is why I am asking so many questions... this looks very interesting to me... I might give this a try!!! I just want to make sure that I am understanding everything correctly!!!
Click to expand...
Cultivator said:
Nice set up! I dont 100% understand concept as i am coco or soil guy but am trying to understand hydro better. I guess this is a hybrid.....

So to get this straight. U hand feed every 2 days with pre mixed nutes. U fill pots untilrun off exits hole in outer bottle. The remaining water sits in the bottom of the bottle and the roots grow into it. How do u oxygenate the water in bottom as i am guessing when u hand feed it wont be enough to empty stale water in bottle and replace with fresh? Or is that not the idea???? Looks really, really cool though. Following with very keen interest......
Click to expand...


It's only about 350mL-400mL or 0.35L-0.4L in the "Res" of that design of hempy, not a whole lot to displace there. Furthermore, once the roots grow in, there's even less. Sort of like a very small DWC in the bottom of it. The plant will get fresh O2 rich premix added to the reservoir when he waters. So no root rot either being replaced with fresh every other day. I would be inclined to water every day to be sure, but I'm sure he's tested this design on the current watering schedule and found it sufficient. Besides, when the plants get larger, they will take up all of that small amount within a day, maybe a day and a half, and the coco provides the final moisture to tide them over till he waters again.
 
jandre2k3 said:
It's only about 350mL-400mL or 0.35L-0.4L in the "Res" of that design of hempy, not a whole lot to displace there. Furthermore, once the roots grow in, there's even less. Sort of like a very small DWC in the bottom of it. The plant will get fresh O2 rich premix added to the reservoir when he waters. So no root rot either being replaced with fresh every other day. I would be inclined to water every day to be sure, but I'm sure he's tested this design on the current watering schedule and found it sufficient. Besides, when the plants get larger, they will take up all of that small amount within a day, maybe a day and a half, and the coco provides the final moisture to tide them over till he waters again.
Click to expand...

but won't the roots grow into the water at the bottom though? I mean I know in a 5 gallon DWC it reaches into the water, but there is a airstone to keep the water moving... sorry, just trying to get the whole picture and not bits and pieces,
If the roots grow throughout the whole 2 litter bottle in a normal hempy grow... doesn't that mean it would do the same with this??? therefore the roots would be sitting in the water all the time at that point... right???
 
Since the res is so small the plants drink it up in no time then it gets replinished so it doesn't really sit long in the water maybe a day and a half two tops when they are smaller
 
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