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Wiz's Chilly Grow Room, 1st Run

wizberry

Member
Hi ICMaggers,

The last grow I actually posted pics on was on Cannabis World, so it's been a little while. But I've been growing non-stop since 1997, usually with two rooms going at the same time. I grew medical MJ in the Bay area for many years but the last couple years have been just small-scale outdoors due to unavoidable circumstances. But I'm a hydro guy at heart. And with the new Medical MJ laws it gives me the freedom to start keeping a journal of this new room.

This room is a break from the past in many ways. I'll be using 1K lights instead of 600s, and growing the plants tree style instead of ScrOG. I was able to salvage some old reflectors & meters from a couple years ago, but not much else. It's like starting from scratch all over again. But I totally love growing indoors in both coco and bubblers. This setup is based on DWC, but it's recirculating SWC.

I just took on a new job as a sales rep in a hydro warehouse to finance this new room. I love to talk to growers & people in the business all day long. I enjoy the freeflow of information & I don't have any ego problems, so if u have any criticisms or helpful comments, they are all totally welcome...hope to hear from all of you!


Room Setup
This grow is in a 11x17ft BR previously occupied by a hot chick:). It has a large window w/ 2 small sliding sections. This is where the AC units are installed, in Stealthboxes. The room temperature stays below 75F even when it's 85F outside, with 2 1000 watt HPS lights running unshielded.

The room has four 120 usable circuits. A supply of RO water is in the bathroom right outside the door. My cat loves to drink it.:cathug:


AC StealthBox Closeup
The cooling is supplied by two Haier 10000 btu window AC units. They're supported by a 2x2 plywood shelf, and 2x4s. They're enclosed in a foam box, and are then covered by b&w plastic. These "stealthboxes" are hidden from outside view by vertical blinds which have been fixed into position. There's service ports cut into the sides to check on moisture levels & the 1/2" drains built into the box bottoms.

Chilly Boxes
Each Chilly Box is constructed of 3 extra large underbed storage boxes, covered in 1/2" foam insulation, and then covered w/ b/w plastic. Each of the inner storage boxes has it's own 3/4" Ebb & Flow style drain.

The boxes are drip fed, 15 min/3 hrs. The nutrient solution is kept cold by the insulation, usually at 68 degrees. The pots are Rootmaker 1 gallon Rounds. They've been converted into netpots by drilling holes into the bottoms w/ a powerdrill.

Just installed 4' bamboo stakes for support. I hope to grow these Blue Dreams into 4 foot trees, topping once at the 5th or 6th internode, and lollipoping those 5 or 6 main branches.

Chilly Box Closeup
Each Chilly Box measures 40 x 60 inches and holds about 30 gallons of nutrient solution. The nutrient temp stays at 68F with or without a chiller, suprisingly.

I have 2 unshielded 1K HPS lights. They're Lumatek HiPar Bulbs, in Super Sun Classic reflectors. The whole room is meant to run 4 lights on a flip but I'm on a budget so just running two 1K lights for now. They're running on a 4 hour flip around the clock during veg, just to cut cooling costs and conserve electricity/money.

The plants were just put in a few days ago and look pretty happy. The roots haven't hit the water yet.


The Chillyboxes drain into an insulated 20 gallon reservoir. I might increase the size of that rez...the only reason why it's a 20 gallon is that I have a "plethora" of 20 gallon reservoirs now and I don't know why. But things seem to stay very stable.

There's a 1/10 hp Ecoplus water chiller set at 69, my favorite number. For oxygen saturation pervs:)

So the plants are being fed diluted Lucas along with some Rhizotonic. When I first got these Blue Dreams, some weren't showing roots out of the rw cubes. I went real light at about .5 EC/250-350ppm at first. They're now at 1.2 EC/600-840ppm. PH has been ranging between 5.7 and 6.1. I just lowered it to 5.6.

More good stuff to come!!:wave:
 
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wizberry

Member
Suspect the obvious. Trust the unseen.

Suspect the obvious. Trust the unseen.



Today my meter was reading a rock solid 5.8. The only problem was that it continued to read the exact same thing after I put in 3 consecutive doses of pH down (I wanted to lower slightly to 5.6). I checked the electrode tip. It had some snot growing in it. I've always cleaned out the snot from pH probes with a mini inter-dental brush. My dentist told me to use it regularly so I do.




The plants seem to be starting to grow bigger now. I can clearly see how much they're progressed from where they were a week ago. These are supposed to be an extremely high yielding pheno of Blue Dream, and supposedly they turn purple irregardless of temperature. I can't wait!


These GH pumps seem to be working fine after a two year vacation. Wish I could say the same for myself. I don't like to work.


Each plant has a 12 inch airstone. Those holes are handmade in America!

B4 I forget I give full credit to Blunt69 and his Magic Trays for the inspiration to build my own hydro setup which is based loosely on his design. Thx Blunt69, and may u continue to RIP. :ying:

Blunt69's Magic Trays
https://www.icmag.com/ic/showthread.php?t=24453&pp=15

Tomorrow I hope to get some CalMag Plus or MagiCal from work. I think I need enough to dose 80 gallons at 10 ml per gallon so thats 800 ml. Damn may as well dump the whole quart bottle in. I never get results w/ CalMag Plus at 5ml/gallon.

So I want to dose at 10ml or just try MagiCal instead also at 10 ml/gallon. For those wondering, MagiCal is Techniflora's version of CalMagPlus, same exact percentage of nutes. :wave:
 

wizberry

Member
subscribed nice work with th ac interesting think you could take more pics of how u did it and they wont over heat?

Hey socafinestmmj,

I'll try to explain..sorry for the crappy pics. The AC sits on 2x2 plywood with either 1x3s or 2x4s for the support legs. The back of the AC unit sits about 6 inches away from the vertical blinds which have been fixed in position.


Once the AC is in postion, just cut a 1" thick 4x8 piece of foam insulation into pieces w/ a serrated steak/bread knife and construct a box around the AC unit. I just use Gorilla Tape cuz it's tough and lightproof, and screws. Just push in the screws with your fingers.



There's about 6 inches of clearance on the sides, top, and back of the AC unit. I put a little desktop fan on top of the unit to help exhaust air out the vertical blinds in the back. The box stays warm but the heat is directed out the rear thru the vertical blinds.

After the foam box is constructed, I cover the foam w/ b&w plastic. The service opening is to get to the fan if need be. The closed section of the window (without the AC) is covered by vertical blinds, then black plastic, foam insulation, then another layer of plastic (optional).



To avoid water dripping, the box is either tilted or has a catch basin. This is just a piece of cardboard box covered in black & white plastic. Since my neighbor's BR is directly below my window, I just let water drip into the catch basin, which doesn't happen often.

 

wizberry

Member
Growroom Fun!

Growroom Fun!

I'm happy to be in my growroom today. It's so relaxing and the air is so fresh for some reason. My bamboo support stakes needed support so I secured them in place with more tape and some wire.



My workmanship sux but I'm a superduper duct taper and my skills w/ twisty wire rank up there with the best. These Blue Dreams are coming along...almost time to top?


Old school reflector...SuperSun Classic. It still averages about 3400 footcandles/sq foot, about the same as a Radiant 8inch w/ glass. (Test done w/ 1K at 24 inches)

AirCooled Reflectors Thread
https://www.icmag.com/ic/showthread.php?t=51325



Just straightened out stuff today. The rez is at pH 5.7, 1.3 EC/ 650ppm(.5)/950ppm(.7). I still need a Mg supplement, which should boost the EC a bit. The nutrient temp is stable at 68-70F.




Still vegging on a 4 on 4 off cycle. Temps are stable... 68F on the side that's off and 72F on the side that's on. I hope to get some CO2 this week and let the temps climb to 75-77.

Can't believe it's been a week already...time flies when ur having fun!!
 
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wizberry

Member
Day 11 of Veg

Day 11 of Veg

JOY!! The first roots have started to emerge from the pot bottoms. These Rootmaker pots are a strange & wonderful design...they have walls & channels which prune the root tips. This is suposed to cause more internal branching of the roots inside the pot. Hope it works in hydro...this is the biggest question-mark in the whole setup.



The plants that are in the water are starting to take off. Everyday they look bigger.



Next up...CO2 and some topping!
 

wizberry

Member
Love the set up. I'll watch :D

Hopefully u'll find a better camera soon! :S


Hey there epicseeds,

Glad to hear from ya. U are so right. I do need a real camera. I've been using a cellphone w/ a sunglass lens taped on. It's just good for laffs, haha!

 

wizberry

Member
Hey nice set up i love the AC units, but dont they suck up co2?

Heya newhiddengrower,

If you're asking if the AC units suck CO2 from inside the room and expel it outside, I don't think so. I used this AC setup from '03 to '07 in two sealed AC growrooms. The rooms need 1-2 min/hr to keep them at 1500 ppm CO2.

I asked a professional AC installer(who also grows) about this setup. He suggested some minor design changes but said it would work fine.



Outside view of vertical blinds, I'll try to get a more detailed shot later.
 

wizberry

Member
This is what the plants looked like yesterday. Here's the left side of the room.



And the right side. They're still vegging 4 on 4 off around the clock. It seems to be working OK.



This plant has about 6 branches, so I really need to top these plants soon.



There's a runty plant in the middle. It really needs some Mg I think. What do you guys think?



Couldn't resist positing this pic of an aero system. The purple in these plants is amazing!!! They smell pretty good too. Running 1 min on, 2 off, PowerPlant, Drip Clean & Rhizo, 1200ppm.

 

wizberry

Member
Day 14 Veg

Day 14 Veg

Busy day today. Finally added the CalMag Plus at 10ml/ gallon. I put in 400 ml, then let the pump circulate for 20 minutes. Then I topped up w/ RO water, and put in the second dose of 400 ml, and let it circulate. The nutes are running at 2.0 EC now, about 1000ppm at the .5 conversion scale (500x2). That's 1400ppm for all you normal people on the .7 scale (700x2).

I hated to do it but I wiped down some scissors w/ alcohol, and started cutting the tops off the plants. They were all topped at 6 healthy internodes. This is what they look like now. That was painful!!





The roots are growing fast, but only from 1 main site from each pot. I think it's cuz the Rootmakers take the central tap root, and directs it out. I don't know if that's good or bad for this type of hydro setup.



What do u guys think?
 
Heya newhiddengrower,

If you're asking if the AC units suck CO2 from inside the room and expel it outside, I don't think so. I used this AC setup from '03 to '07 in two sealed AC growrooms. The rooms need 1-2 min/hr to keep them at 1500 ppm CO2.

I asked a professional AC installer(who also grows) about this setup. He suggested some minor design changes but said it would work fine.



Outside view of vertical blinds, I'll try to get a more detailed shot later.

hey thanks for answering my question, but it wasnt specific enough.

Do you use Co2 generator or tank/regulator?

Do you have a co2 monitor to check your co2 levels?

Thank You
 

JTDuffet

Member
The only issue i have found to having a main root ball forming from the side rather than the bottom, or having multiple root shoots penetrating outside the pots is plant stabillity. The plant had a tendancy to want to not stay as stable, but i see you have wood supports already ready to do, so i would say its not going to be as big an issue in the stabillity. But of course more roots are better.. they'll come...

-jt
 

wizberry

Member
hey thanks for answering my question, but it wasnt specific enough.

Do you use Co2 generator or tank/regulator?

Do you have a co2 monitor to check your co2 levels?

Thank You


Although I used to use a CO2 Burner (an old Gen1 LP) I prefer using a CO2 tank, with a regulator, hooked up to a digital timer. I just use the manual test tubes, no fancy monitor.

Hopefully I can get the CO2 setup within the next day or so, and I'll have some pics 4 ya.
 

wizberry

Member
The only issue i have found to having a main root ball forming from the side rather than the bottom, or having multiple root shoots penetrating outside the pots is plant stabillity. The plant had a tendancy to want to not stay as stable, but i see you have wood supports already ready to do, so i would say its not going to be as big an issue in the stabillity. But of course more roots are better.. they'll come...

-jt

JTDuffet,

I noticed roots finally coming out the bottom of the pots today. I never really considered the stability issue, I'll hafta think about that more as things progress.

Thx,
Wizberry
 
Although I used to use a CO2 Burner (an old Gen1 LP) I prefer using a CO2 tank, with a regulator, hooked up to a digital timer. I just use the manual test tubes, no fancy monitor.

Hopefully I can get the CO2 setup within the next day or so, and I'll have some pics 4 ya.

well you see, those ac does suck up co2. I didnt know either when i used those AC untill i got my fancy co2 monitor my room was actually never 1500ppm. i wasted so much co2.
 
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