PC-GROWBOX, 70w CMH, stealth, Big Duch Bud fem reg.

[StrangeVisitor]

Hey _WeeDude_,

Here’s a photo of the current filter design. Nothing new and exciting – a brutal axial fan and a tube filled with charcoal.

I’ll try to describe the new filter design in words.

The filter has a rectangular shape and has two compartments – one with a blower fan (turbine) under a positive pressure that the fan generates; another one filled by charcoal. There’s a net or fiber used to separate one chamber from another. The same net is used to cover the charcoal surface from outside. The height of the pressurized compartment is a few mm bigger than the turbine’s height, and the height of the compartment with charcoal is a desired charcoal layer thickness – mine is 34mm.

The filter sits airtight on the wall (it may be the ceiling too) with only one hole in it – the air turbine intake. There’s no other way into the filter but through the blower and no other way out but through the layer of carbon.

The body of the filter is made of wooden planks 15mm by 30mm and 4mm thick plywood. But the body could be made of anything you can work with – even 3d printed.

Currently I’m waiting the proper blowers to be shipped, as the one I have is way too powerful for a pc grow setup (Sunon PMB1212PLB2-A 120x120x32mm blower rated 9.8w (0.89 in h2o compare that with axial fans!) running @7V instead of 12V is still waaay to powerful and noisy as well).

Ones the proper blowers are in my possession the filter will be completed and I’ll make a report here on IC to make the “technology” public.
By now the filter has been tested with the air going through it several times faster than it should but still it did filter odor well removing almost all the smell of an aroma stick lit on the fan’s intake.

 

[StrangeVisitor]

Hi!

So the latest news:
1. The 14 top-colas were harvested trimmed and now are being dried. Photo below, weighting soon )).
2. Decided to leave the bottom colas for another few weeks as there no seeds atm.
3. Eventually managed to measure some numbers about the fans: the current design (bathroom axial fan) restricted both with a layer of charcoal and capacitors is pumping a pathetic 0.5 l/s, while the underpowered (@7.5V DC) but not restricted 120mm blower fan pumps 10 l/s – 20 times as much, wow! And the blower develops a much greater air pressure inflating a large garbage bag as a balloon.

New smaller blowers are to arrive soon.

 

[_WeeDude_]

Hey StrangeVisitor! Good to see that everything went great for you, those colas look tasty!
Thanks for the information about your vents, glad you found something more efficient. I haven't yet tried it in flowering, but for vegetation a plain carbonactive "sheet", normally used for fume hoods in the kitchen, placed in front of a outwards-blowing pc-vent, was working quite well for me - maybe this could be interesting for someone starting a PC-box a little less professional than yours.

Good work, looking forward to see the final results!

 

[StrangeVisitor]

The first crop has been separated from the stems and dried well. Left only the tops of three best colas on a short “legs”, everything else are nugs. The first crop dry weight is 32g (1.13oz). Pretty potent stuff. Smoke rep after curing. Packed densely in a 1l bottle and store in a cold place.

Whilst I expected a bit more, 32g of clean quality nugs out of a mid-tower with only 70w of light and 1.5l of soil grown without any complicated technics, I’m still pleased.
The flowering time was 72 days.

The remaining crop is leaving its last days. It will be harvested tomorrow or the day after tomorrow. Expect to have there +5 something grams more. Might use it for some edibles – like it this way more than smoking. Will post the harvest #2 here as well and total weight later.

WeeDude, hey! “a plain carbonactive "sheet", normally used for fume hoods in the kitchen” – nice thing, I’m sure it works well. Yep, I know about it and considered to use such material earlier. Why didn’t I – my guess that it’s “odor capacity” (how long it can absorb odor) isn’t big enough and it may not last long. On the other side, it should have a huge active square and work very well while it is new enough. It should have a moderate air resistance too. However, I can be wrong about it all. Anyway, good to hear it worked out for you and hope it will work well when you’ll flower your girls! I’m quite sure this material is applicable for your purposes ))).

Guys, can anybody help: what is the best way to collect pollen and to preserve it? Have grown a male and now it is pouring dust as hell. I want to make some seeds the next cycle with a fem nut.

Happy grows!

 

[HuffnPufferfish]

i used those sheets once, had some leftover from the catlitterboxfilter and wrapped it around a can and added a 12v fan to it, worked for about 2 months

 

[StrangeVisitor]

Some time later…
The rest of the plant mentioned above has stayed another 3 weeks under the light and then was moved to a dark dry and cool place to dry out. It was interesting to see how the buds would dry naturally on the stems. See not much difference ))). Here’s a few shit quality (I beg your pardon) pictures.
Final weight coming soon.

Meanwhile an unknown bonus seed has grown up into a male in an old pc box. Collected some pollen to try make seeds another round. Is the fridge (+6*C) a right place to keep the pollen?

Smoke rep.
The main crop has been tested many times while curing. The smoke is harsh and will make you cough a lot after a serious hit. Then in a moment you’ll feel how the thc & Co hits your brain. In a few minutes the world suddenly becomes a much better place and a lot of thoughts come to your head. At the same time you’re not lost – very thought enhancing strain. It’s a very social for first few hours too – good to use in a circle of friends. Two good hits will keep you pretty high for 2.5-3 hours and several hours of post effect fleur. After high times a kind of stone effect comes – you become so lazy that it’s difficult even to speak.
If make another hit in a few hours into the trip – it won’t stone you so bad and prevent possible headache.
Nice and potent strain, mostly for evening use.

The growbox is disassembled for an upgrade. Strange feeling to have nothing running atm. Growing is just so much fun!

 

[HuffnPufferfish]

holy lordy that pollendust

 

[Exotic_Grow]

Some time later…
The rest of the plant mentioned above has stayed another 3 weeks under the light and then was moved to a dark dry and cool place to dry out. It was interesting to see how the buds would dry naturally on the stems. See not much difference ))). Here’s a few shit quality (I beg your pardon) pictures.
Final weight coming soon.

View Image
View Image

Meanwhile an unknown bonus seed has grown up into a male in an old pc box. Collected some pollen to try make seeds another round. Is the fridge (+6*C) a right place to keep the pollen?
View Image
View Image

Smoke rep.
The main crop has been tested many times while curing. The smoke is harsh and will make you cough a lot after a serious hit. Then in a moment you’ll feel how the thc & Co hits your brain. In a few minutes the world suddenly becomes a much better place and a lot of thoughts come to your head. At the same time you’re not lost – very thought enhancing strain. It’s a very social for first few hours too – good to use in a circle of friends. Two good hits will keep you pretty high for 2.5-3 hours and several hours of post effect fleur. After high times a kind of stone effect comes – you become so lazy that it’s difficult even to speak.
If make another hit in a few hours into the trip – it won’t stone you so bad and prevent possible headache.
Nice and potent strain, mostly for evening use.

The growbox is disassembled for an upgrade. Strange feeling to have nothing running atm. Growing is just so much fun!

Hey StrangeVisitor! Nice grow log, have you tried smoking the buds you let dry while on the plant? I imagine that letting them dry while the plant is dying might possibly reduce the chlorophyll contents, I have nothing to back that up though, just a thought!

And what are you thinking of crossing the male with? I have myself just started a PC grow a bit like yours and I am thinking of maybe saving a eventual male to make some seeds, or do you think its a bad idea considering my limited space and experience?