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RDWC Trees Please

For your reading pleasure I would like to present my humble interpretation of bioponics.

Before I get started I would like to pay a quick tribute. Here's to guys like Head, Lucas and pm for their work in nutrient programs. Along with guys like BigToke, Krusty, SoQuick, Blazeoneup a and Heith Robinson for their work in the mechanics of Recirculating Deepwater Culture.

My bioponics strategy relies on my rendition of Heath Robinson's recirculating water farm mod, my bio brewer, and my kick ass hillbilly nutrient program.

Let's start with my bio brewer. What we have here is a penguin bio wheel aquarium filter sans the filter, hanging off the back of a 4 gallon cat litter bucket, painted black. Additional oxygen is provided through a single outlet aquarium pump with an air stone. With this brewer I create my own bio activator which is then relied upon heavily in my nutrient program. Here are the instructions for making activator:

Add:

Maxicrop soluble seaweed powder @1 teaspoon
ageold organics humic 12 @2 teaspoons
organic blackstrap molasses @1 teaspoon
fermented blackstrap molasses@1 teaspoon (more on this later)
per gallon of water

Allow this to brew for 24 hours at least. This brew can keep for a week or two no problems, I add 2 teaspoons of blackstrap molasses every four days when the brewer is close to full.

Fermented blackstrap molasses is organic blackstrap molasses and Kiefer whey at a 1:1 ratio allowed to fermented in a cool dark place for two weeks prior to use.


Let's get to the simple part the nutrient solution:

Add:

General Hydroponics Maxigrow @1/2 teaspoon
General Hydroponics Maxibloom @1/2 teaspoon
my bio activator @6 ounces
3 mL of 29% H2O2 solution
per gallon of water

Every gallon of water that these plants get is exactly the same with the exception of weeks 5-6 which get the addition of General Hydroponics Koolbloom powder, and the flush which is my bio activator@6 ounces per gallon of water for the last week.

Let's move onto my interpretation of Heath Robinson's water farm mod. You'll need the following supplies:

2 General hydroponics farm kit item number 4115 $13.95 each
3 feet one-inch black tubing $1.36 per foot
7 feet 1/2 inch black tubing $.31 per foot
one 1/2" tee $.50
four 1 inch outlet fittings $2.37 each
three one half inch outlet fittings $1.95 each
2 1/2" straight fitting $.34 each
one float valve $13.95 each
one Eco plus eco66 submersible pump $9.95 each
one General hydroponics dual diaphragm air pump $64.98
four 5 gallon buckets $7.59 each
two bucket lids $3.27 each
two 10 inch Aero bucket lids with mesh bottoms $5.50 each
MISC 1/4" air hose and air stone's $7.95

$195.39 total before tax

This is by far the most expensive hydroponics set up that I have put together for only two plants. However, I'm hoping to exceed 1 pound per plant using 1600 W of HPS lighting.


Here are a few annotated construction pictures:



Both pumps are on 24/7, the air pump delivers 320 gallons of air per hour, and the water pump moves 66 gallons of water per hour. Considering that this system holds 10 gallons of nutrient solution, you can see that were moving a lot of air, and a lot of water.

Here's a picture of the system crammed into my veg closet under 300 W of CFL lighting. The mothers are in the DWC bubblers in the middle and yes those are Bonsi DWC Mums.



As you can see I have chosen a white widow and a white widow/big bud cross for the first run. Although these are not my highest yielding strains they are my call 911 one-hit wonders, and they have the prettiest flowers. For me, this run is about having some fun and growing some frosty white nuggets.

Thanks everybody all stop back by later to answer any questions and I'll start posting progress pics every week or so. I'll finish with pictures of my bubbler bucket DWC scrog run we will be waiting on.



Peace,
tfd
 
System looks good! My only suggestion would be to increase the water capacity for improved PH stability. In a healthy DWC system, the roots will be doing some ion exchanging that naturally will cause a rise in PH. In other words, when the plants eat, they cause the EC level to decease and PH to rise. You want this process to be as slow and steady as possible for maximum plant growth and health. The easiest way to accomplish this is to increase the total water capacity of the system.

Good luck with your project and thanks for sharing!
 
Thanks budshoteyes and hydrosun I'm really having fun with this one.
System looks good! My only suggestion would be to increase the water capacity for improved PH stability. In a healthy DWC system, the roots will be doing some ion exchanging that naturally will cause a rise in PH. In other words, when the plants eat, they cause the EC level to decease and PH to rise. You want this process to be as slow and steady as possible for maximum plant growth and health. The easiest way to accomplish this is to increase the total water capacity of the system.

Good luck with your project and thanks for sharing!

You are right on with your thought here. My only two upgrades that will probably happen when I find just what I'm looking for will be to double the size of the controller and the res, in addition to plumbing the feed line to the buckets in a loop to equalize delivery to each bucket. The controller and res may have to be a custom 3mm plywood and epoxy job.

peace all
tfd
 
Update

Update

Nothing to report with the buckets other than everything looks just great. I thought I'd take a bud shot for today's entertainment. This is one of the White Widow x Big Bud's buds @ 33 days 12/12, looking straight down on the scrog:



peace,
tfd
 

silver hawaiian

Active member
Veteran
:lurk:

Sub'd. I'm going to be firing up a 4 bucket DWC (no R) SCROG, to flip on 10/1. Looks like this might be a good preview of what's in store for me.
 
Hi silver hawaiian, The scrog run was my first and I'm liking it. I think I'll do a little better on my screen next time the 1" green eco netting it hard to work with as the 1" squares are to small. I'll be making a 2" screen next time I scrog. Other than that I think I hit the timing right and what not.

tfd
 

silver hawaiian

Active member
Veteran
Perhaps this is the right place for this question, perhaps not, .. Let's see!

What are the real advantages to RDWC vs. a simple bubblin' bucket? I understand the idea of maintaining one rez vs. per-bucket, .. But beyond that..?
 
Moving water is easier to keep cool!

DO is better!

Nutrient flow serves better feeding!

Adding new water and nutes is way easier!

One Rez serves many buckets!
 

silver hawaiian

Active member
Veteran
budshot

Great stuff - this is what I'm looking for!

I suppose the next question is, .. For a 4/5 bucket setup, 400 watts, .. Is it worth the extra ~ $100 in parts (controller bucket/plumbing)?

Hmm.

:thinking:
 
If you can for an extra $100.oo do it! Choose a pump that will allow for expansion!... the faster your exchange rate the better even if you wish to keep it small.

There are many rdwc's represented in different threads here but only 1 is stickied,you'll have to do some searching!
Google too! as there're many ways to do rdwc as some are very simple and others are outrageously complicated and expensive!
You'll know when you find the right one for you!

Hint...google... blazeoneup

Here on icmag "bigtoke"'s biobuckets are the only sticky and it is seriously one of my favorites ever! It's his top drain that peeked my interest.

Thefalsediviner mentions "Heath Robinson"....read his thread here on icmag....he is a rdwc icon too!

And stick with "thefalsedeviner"'s thread too as his variation of rdwc is a very interesting set up and feeding program....it's totally new to me and that's why I'm here....meeting good peeps and learning along with them!
 

silver hawaiian

Active member
Veteran
budshot

More good stuff from you - thanks man. Have you seen gettogro's RDWC? Amazing setup - grown in Brutes and Totes. BIG trees!

Part of the challenge is that a) I'm too stubborn to BUY a controller bucket and b) I'm too dumb to figure out how to build it on my own, .. So I'm left with c) have my buddy help me out. :) And THAT, of course, always means I'm on someone else's schedule..

Although, I'll be growing 4 different strains (one per bucket - maybe even 5), .. So I'm wondering if maybe I'd rather stick with a plain ol' DWC this time 'round, so's I can feed 'em all individualized and what not.
 
Last edited:
Four different strains....stay with the individual buckets as they will each have their own needs! The only disadvantages to rdwc is you can't move plants around as much and their all being connected does not favor multiple strains.

Your definitely not to dumb....just not ready...get that first grow happening and afterwards you'll have all the confidence you need to go as far as you wish!

Everyone here has been through it or is still new like myself...and you!

The tree grows are amazing...gettogro's too!
 

silver hawaiian

Active member
Veteran
Until my most recent organic grow, I've not grown in 10+ years, .. Back then was piddly kiddie projects, never having the spot + resources + genes all at once, .. But, that was always DWC, ..

My mechanically-deficient brain shuts down when I hear things like "float valve."

:)
 
Hey SH, Keep it as simple as possible until you have a couple of runs under your belt.

Not much going on in the grow room the last couple of days. I transplanted a couple of rooted Cheese Quake cuts into rook-wool cubes. As soon as the new rig goes into the flower room I'll set these up in non modified DIY water-farms for veging. Looks like probably three weeks until I can free up space in flower.

tfd
 
Picture Update

Picture Update

White Widow x Big Bud @37 Days 12/12




White Widow @37 Days 12/12



Hippy Crippler @37 Days 12/12



Scrog Shots




KC-36 @37 Days 12/12



AK-48 @37 Days 12/12



and the veg cab moving right along, I couldn't be happier with the modified water-farms.



peace,
tfd
 

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