medical

this was a repost from CAP
Guide [hydroponics]
compact vertical octagon diy parts list and how to guide by 'El Blastido'

Quote:
For my second hopefully entertaining tech write up, I will share and outline my journey in building a vertical octagon hydro system for the do it yourselfer .

Here is a complete parts list , tools needed and instruction on how El Blastido built a vertical octagon hydroponic system, using simple readily available parts from any lumber or hardware supply.

First let me say that I in no way claim to have dreampt up this idea and there are several other write ups about this system.
Where I hope to help is by refining the design to be as simple as possible, we as humans tend to over complicate and over engineer.

I had been using for a very longtime a horizontal semi aeroponic system that I built nearly 21 years ago. After seeing the coli and the diy octagon I decided I wanted to get the satisfaction of building, re engineering, simplifying, and bullet proofing this practical design..

Why vertical? Efficiency! To provide light deeper into the canopy via side lighting to lower bud sites
To gain yield.
To provide the whole canopy with equal lumens
To cut in half the wattage it would take to grow the same amount of plant sites horizontally
To shrink the floor space needed
There are many reasons and those are just a few.

Now comes the consideration of what type of pipe to build the system from
I chose 3” black abs waste and drain pipe for cost and opacity.
3” pipe offered the best compromise of air space drainage and final layout for size and the availability of 3” net cups.

My choices were
3” white pvc
3” black abs
And 3” light duty styrene

Of the three styrene was the least expensive but was too thin and allowed light through which can cause algae to grow and compete for oxygen , white pvc would have been my first choice until I saw the price per fitting was double that of abs .
My only concern using abs was the fact that black will soak heat from the light source and that could be bad for heating the nute solution .to unacceptable levels .
So I purchased 1 abs black y fitting and placed it the distance it would be in the octagon to measure how much 12 hours of light would increase the temp of the fitting on the surface and the air inside.
After 12 hours under hps light the rise in temp was nothing to worry over, beside within two weeks the canopy should have the black plastic covered.

Tools needed are simple hand tools including a drill with a 13/16” flat spade wood bit
A hacksaw or what I found to work best was a bahco prizecut300 saw made for cutting pvc pipe , it has a wide blade compared to a hacksaw so it is easier to keep the cut going straight.
A deburring tool or some 80 grit sand paper.

This parts list is for a 56 site system but you can start smaller or go bigger that’s up to you.
The total cost was right around $400 without the pump and reservoir .
I found the prices of abs and pvc fittings varied a ton from different suppliers so shop around .

56- 3” abs wyie or Y
8- short 3” abs 45
14- short 3” abs waste T
14- 3” rubber quick cap
13-½” combo T
1- ½” combo elbow
14- ½” threaded coupler
14- Rainbird or equivalent 15 foot radius shrub sprinkler
1- 20’ roll 5/8” vinyl tubing
1- 4” no hub connector
21’ abs pipe cut into 91- 2 ¾” pieces
3- 8 oz can black abs cement
56- 3” net cups
1- tube of food grade grease
1-15-30 gallon reservoir
1- 500 gph pump
2- 3" 90 elbows
Here we go

First you will take the 20 foot piece of pipe and cut it into 91 pieces each measuring 2 ¾”
These will be used for couplings to join all the elbow ,Y and 45 fittings together to form the octagon.

Next you will saw the female collar off the Y . use the line of the collar as a guide to cut straight through
This is where the 3” net cup will be sitting so try to cut it straight
Now that you cant lift your arm from making a couple hundred cuts go smoke a bong rip and pat yourself on the back because the hard part is done .

6692Picture_098.jpg

Next you will lay out the system to get a feel of what goes where before we just start gluing .
I started on the upright columns first
build 14 columns each with 4 Y’s and couplers at both ends , make sure you aim all the Y’s the same direction .
Also when using abs cement make sure to do it outside in a well ventilated area
To assemble the parts using abs cement make sure you put a nice even coat inside the female joint and on the coupler . You don’t need to use a lot just make sure it fully coated so you don’t have leaks .

Now that the columns are built you will lay out and build the base using the short waste T’s and 45 degree elbows in an octagon fashion . The overall dimensions are 58”w X 58” d X 48” h .
So if you were to glue it all together you will not be able to fit it through doorways .
So I built it as 2 halves to facilitate take down and removal without destroying the system
join the two halves using a piece of coupler without glue using the no hub connector to seal the joint .

6692Picture_092.jpg

6692Picture_097.jpg

once the base of the octagon is built it's time to glue the columns into the base . you should now have all the gluing done and time to move onto the water delivery system .
you will start by drilling the 14 rubber quick cap's with the 13/16 flat spade wood bit in the center like the picture shows

6692Picture_085.jpg

i also removed the steel hose clamp that came with the quick cap for easier access to the tops of the columns , also in the above picture shows the 1/2" combo T , 1/2" threaded coupler and shrub sprinkler .
once the caps are drilled assemble the cap , combo T , threaded coupler and shrub sprinkler like such this will go on top of the columns .
this was the absolute simplest water delivery system available . i also tried using the smaller style 360 1/4" drip line type sprayers but felt it was not delivering enough water over the roots . i like to have the roots soaked within 30sec-1 min on time with about a 5 min off time .
put all cap assemblies on top of the columns with T's facing one another and start cutting and fitting the 5/8" vinyl hose all the way around .
i found that these grey 1/2 "combo T's are to big to slip standard 1/2 vinyl tubing onto , so 5/8" turned out to fit perfect . run the hose from your pump to the first T and all the way around to an the combo elbow at the last column .
that's it ! a very reliable and extremly simple nutrient delivery system .

6692Picture_087.jpg

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the drain on this system is very simple at the end of each half turn down with a 90 elbow back into the reservoir , this is a fool proof drain that wont clog

6692Picture_094.jpg

here is another shot from the back side . i mounted the room controller on the system as close to the canopy as possible for more acurate control of the canopy enviroment.

6692Picture_055.jpg

this systems maiden voyage will use 2 600 hps , full line up of advance nutes
half purple urckle half ecsd so stay tuned for the break in run ..
btw if your interested in how i set up the air cooled vert tube [then check out the thread to be posted in 'topia's grassroots forum...]

hope i made enough sense for this to be of use lol
peace yall
El Blastido
just an FYI...a system such as this, not the same, a lil larger in scale, costs nearly 5 thousand dollars before trucking fees to buy pre-fab.

__________________
Peace,
www.makesmartchoices.org

medical

Why vertical? Efficiency! To provide light deeper into the canopy via side lighting to lower bud sites
To gain yield.
To provide the whole canopy with equal lumens
To cut in half the wattage it would take to grow the same amount of plant sites horizontally
To shrink the floor space needed
There are many reasons and those are just a few.
a friend of mine runs a pre-fab (3k$) system like this. 72 plant sites, 2 weeks veg. time in tables, and just (2) 600w digital HPS lights in a cooltube. with a moderate yielding strain he averages 30" tall plants, about 65 grams per site... if you do the math that's roughly 4-5 kilos (10lbs) per harvest. with just those 1200 watts! thats about 4 grams per watt! untouchable!
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__________________
Peace,
www.makesmartchoices.org

Futuregrower

got pics, or a link to the original with pics?

__________________
~~ The Once And FutureGrower
The futures here, we are it, we are on our own....Singing Ashes, ashes all fall down......

"I inhaled, frequently," Senator Obama said before being elected President "That was the point."

First Grow! Twofer, Mandalas "Satori" and KC Brain's "Northern Lights Special"
http://www.gardenscure.com/420/hydro...kc-brains.html

Caution! (Do not stop on tracks). Grow 2

LINK to a great way to search, written by Burndt

knna

I loved the octagon design. Pretty simple and very effective.

Without any doubt, when using HIDs, vertical growing is the way to go if you are looking for the best productivity and save space. And the octagon DIY setup shows that its possible to do for cheap, without the need of buying very expensive vertical systems, as the colisseum and the others.

But calculating harvest by multiplying plant's sites by plant yield almost always is very misleading. People tend to report the highest yielding plants of the setup, not the average.

Ive followed some journals using the octagon and finished with yields a little over 1 g/W, which IMO is excelent. Indeed, the only systems Ive seen along the years that yields consistently 1 g/W or more, are vertical systems. But 3-4g/W is hypothetical and I strongly doubt it would be possible with current technologies. I would need proof of it to believe it. Well, probably if you weigth stems and not fully dry weed, it would be possible.

At least, what people is getting mostly with this type of setups is to go over 1g/W, that I believe is a very good productivity and most serious growers would be interested on that. No any need of doing 4g/W claims.

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