Perpetual harvest cabinet - 2x 150w hps and cfls - Grapefruit Hash & Pineapple Chunk

reggaerican

reggaerican

Well-Known Member
wow now im subbed for sure i remember seeing your other thread not to long ago when you were working out tha kinks with your ducting...
this is such an awesome grow cab bro i would rep you but im on a 24 hr hold again, so iou... huge huge props im really diggn the perpetual grow in suck a small space...
 
T

Troyzkoi

Active Member
Pullin' weeds said:
The flower chamber has 2x 150w HPS bulbs in home-made air cooled reflectors. In the summer, I can put glass into the fixtures to act as a heat shield. To add a little spectrum variety and a few extra lumens I added a few CFLs in as well. Circulation is from a small hanging desk fan. Everything suspends from the ceiling and is easily adjustable. Air flows from the veg into the flower chamber, and finally into the utility chamber via a bathroom fan with speed control. Inside the utility chamber, I have a small ozone generator for odor. For ultimate odor control however, the vented air gets blown into my house's plumbing vent stack - blowing split out the roof and into the sewer. What better place to hide odor than in a big shit pipe??
As I said, each plant spends 10 days in each of 6 positions, for a total of 60 days in 12:12. I also try to rotate each plant 90 degrees every day (poor man's light mover). In each position, I do something different each cycle. Examples - Position 1 gets continued training as it stretches, 2 & 4 get a dose of nutes, when a plant gets to position 3 and 5 it gets a decent h2o flush . At 5 and 6 I trim out large fan leaves to get more light to the lower regions. (the plant would be starting to drop them anyway). 5 & 6 also get Molasses or sucanat.
Hanging over the last 2 positions, I have a UV-A Cfl, sold in pet stores for people keeping reptiles. There is an interesting video online I saw regarding UV-A and THC production (google it). What sold me was a map overlay naturally occurring high-THC strain lo-cals, with UV-A concentration. Highest UVA levels – i.e., equatorial and high mountain regions historically produced the strongest weed. Anecdotally, I felt it made the plants finish sooner and more potent. HPS bulbs don't put out squat UVA.

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I too have seen this video you are talking about, and they pulled it off of the web over a year ago... And it was UV-B not UV-A light radiation that helped put the plant in a defensive mode and produce more THC... As you get into higher elevations you get more UV radiation exposure, thus if you plant in a higher elevation with similar light and climate you will have more potent weed at the higher elevations... This is what he was saying as well in his vid. The UV-A light will definately harm and damage your plants. UV-B might damage your plants as well if on for the full time, haven't experimented yet, but he suggested in the video to start out maybe at 4hours total during your 12:12 light on in maybe 1/2 hour or 1 hour increments... Then maybe working your way upto 6-8 hours on in 1/2 hour to 1 hour increments... Wear Glasses and do not be in the room with the UV-B lights on for more than 15-20 min. They are the same lights used for tanning.... And yes there are Reptile lights that are UV-B only, without UV-B... Dr.Fosters and Smiths website maybe??? This video is practically burned into my head...
 
T

Troyzkoi

Active Member
http://www.pot.tv/archive/shows/pottvshowse-4525.html here is a link that shows the title of the video... "THC, UVB, and ME" that video was priceless... More trivia for you, Solar cycles and solar flares, during the years that the Solar Flares are least active are the years that there should be more UV radiation for the Outdoor growers, given that it is also a sunny season and not a dark wet one... NASA or whoever just proved this year that they had it backwards...
 
Pullin' weeds

Pullin' weeds

Well-Known Member
Sorry, my bad - you're right Troyzkoi, it is a UV-B bulb, NOT UV-A.
I guess I've been smoking too much of what I grow LOL :)

My UV bulb clicks on for only about 5 hours midway through the 12:12 - simulating the midday sun.
Thanks again for the correction! (I'm gonna try to edit my first post so there isn't any inncorrect info...)
 
Pullin' weeds

Pullin' weeds

Well-Known Member
mijola3 said:
hey there just wondering what you use to move the air from clone/veg room to flower room? i can't see in the pics...maybe a PC fan or something? and another quick question; do you have a passive air intake in the clone room? just some holes in the bottom or something? thanks for your knowledge,
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I've got some light proof passive intakes between the chambers and in the side wall of the veg chamber for fresh air intake. Air gets pulled from outside the cab, through the veg space, into the flower space, into the utility space, then out through the sewer vent. The clone space is right next to the utility chamber, and it gets enough fresh air from construction gaps between it.
 
Pullin' weeds

Pullin' weeds

Well-Known Member
I also found my first female pre-flower on Pineapple Chunk confirming it's a girl! woot!!

So my original plan had her vegging another 10 day cycle after the current one flips this weekend. But she's put on a lot of new growth this week and I'm nervous she's gonna outgrow the space. I'm tying her down, but I don't think she can go another 15 days.
My trouble is, I've also got a grapefruit thats gonna be ready too. Granted, it's a nice problem to have, but...
I think I'm gonna push PC ahead - I've heard she streches alot. I don't like crowds...
After reading more experiences from others with the strain, it looks like I'll also have to extend out my timing too. Bummer, I hate re-syncing. Most people don't realize how difficult it can be to get all the timing dialed in on a grow like this.
 
Pullin' weeds

Pullin' weeds

Well-Known Member
So - I have a plan.
Pineapple chunk was definately gonna outgrow if I keep her in veg another 10 day cycle. But so was Grapefruit. Since PC seems to def need more than 8 weeks, and not wanting to mess with my existing schedule, I came up with this...
At the turn of the next cycle, Grapefruit will go to flower as usual. P-chunk will go off to a temporary cfl grow space at 12:12.
At the following cycle, the already-10-days-in-flower PC will go into the regular flower space.

So PC gets some extra flower time, my schedule is maintained. The veggin plants of that upcoming cycle could use some extra time anyway.
 
K

Kornathia

Member
Love the cabinet. Anyway you can draw up the blueprints and post a pic of them? I may have some room that size and would love to try and copy you in the future. I will definitely be watching your thread here. :D Love your problem. LOL Wish I had that problem. :D
 
Pullin' weeds

Pullin' weeds

Well-Known Member
Here's my Pineapple Chunk. She'll be going 12:12 in a few days. I just repotted her and given'r some recovery time.
DSC_5921-01.jpg
 
FirsTime

FirsTime

Active Member
This is great and I love your set up. I'd love to own me a stealthy cabinet like that, But i'm currently doing a scrog pc grow. Looks great keep up the good work ;)
 
mijola3

mijola3

Active Member
Pullin' weeds said:
First off we've got the clone and preliminary veg space. It's got a horticulture heat mat, keeping all those delicate babies nice and warm. After trying nearly every cloning technique, I've settled in the KISS (keep it simple stupid) technique. Clones are cut, dipped in gel and then put into small cups of plain water. That's it... I can get 4-5 per cup. Roots show in about 10 days and I've had 100% rates since adopting it. I like it cause I can imediately see when the roots develop withou disturbing them and it couldn't be easier. I don't have a "mother" plant - clones are cut from plants just before they move into the flower chamber.
After a few decent roots appear on a cutting, it goes into a 9 oz cup w/ drainage holes. They spend 3-4 weeks. I usually have more clones than I need, so I select the best for re-potting and sell/give/chop the rest. Once space opens up they move below to the main veg space.
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hey PW, im wondering if you use a humidity dome for your cuttings, im interested in your technique, just wondering if you cover em up for a few days or not. thanks
 
Pullin' weeds

Pullin' weeds

Well-Known Member
I was for a while. I had made up some nice domes, just enough air holes, fit nice on my pots... but I found I haven't needed them. I mist them once right after I'm done with the cloning session, but other than that I haven't had to do anything but keep the cup filled.
If I notice any struggling I'll pop one on, but hasn't been a problem lately.
 
Pullin' weeds

Pullin' weeds

Well-Known Member
So couple of updates - I just put pineapple chunk into the main flowering chamber. I had given her a 10 head start in a separate space under cfls.
Due to cold temps, I've had to do a few things; rather than have the extraction fan on 24/7, it now only comes on during the "day" (which I run at night). This has caused a small odor problem in the basement which I'm taking care of temporarily with a timed air freshener spray. Sprays every 30 mins but can be set more frequent. Smells like laundry, which fits as it's next to the laundry room :)

I've also had to hang a small space heater in the flower space to keep the temps moderate (~70f) during the "night". "day" temps with all the lights on run in the mid 80s so all is good there. Veg spaces is a little cool in the low 70s. Clone space is OK due to the heat mat.
So a few pix - a nice bud just out from the curing jar - a grapefruit in it's last few days - and pineapple chunk in her new home, surrounded by girlfriends.

DSC_5921-02.jpgDSC_5923-01.jpgDSC_5920-01.jpg
 
gumball

gumball

Well-Known Member
Nice setup, very good ideas went into this. Subbed to see the outcome

What kind of ozone generator do you have, would you mine snapping a few photos of it for me? Has it worked well for you?
 
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