Which would produce more DO in a DWC?

JSB99

JSB99

Well-Known Member
Day one of flower. Supercroped the one in the back that was outgrowing the other three. I'll supercrop a few times more as the weeks go on. I'll put my net back up soon. I'm not going to scrog. The net is to hold the colas up when they get big. I have topped them all to grow them in manifolds, so I'll have several tops.

This picture was taken with my cell, with the HPS on, but you'll notice that the color isn't washed in yellow. I use Photoshop Express to edit, and the built-in auto-correct fixes it perfectly! It's free to use!

PSX_20180321_122730-2613x1896.jpg
 
JSB99

JSB99

Well-Known Member
How I weigh my branches down:

No complex tutorial here, just showing an easy way to weigh down your branches when you've supercroped, or doing LST. This works really well when you don't have a place to tie down your branches. Just tie a string around the branch and hang clothespins.

PSX_20180321_140630-2340x1798.jpg
 
JSB99

JSB99

Well-Known Member
Anyone got a lawnmower I can borrow LOL! I just trimmed these yesterday...and the day before...and the day before...

PSX_20180323_121738-3117x2183.jpg


Noobs, you'll notice I've got four fans going in this small space. Circulation is crucial, and is much more important than many new growers realize. Right now my plants are growing too aggressively to clear out all the leaves, and let the air flow through them. If I trim too much at once, I could shock them and delay growth, or even turn them hermie. So I trim some each day and fluff up the leaves so they aren't sitting on top of each other, creating condensation between the leaves. I have to create a lot of circulation to get air to the center of the plants through the bushy leaves, without having the fans blow directly on them too much to cause windburn. All the fans are offset to the plants. The plants get wind bounced off the walls, other objects, and the wind created by the oscillating fan. The oscillating fan works great because it does allow some direct wind from the stationary fans. The oscillating fan disrupts the constant direct wind every few seconds
 
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JSB99

JSB99

Well-Known Member
Cold$moke said:
No, i agree as i do the same thing with my shed op i draw air from its "crawlspace" as the shaded ground maintains about 55to 60 in the summer:)

But the condensation drips is what was refering to .... its sucks when you dont want drips anywhere in cold climates we gota deal with that crap lol
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Budley Doright said:
If you use insulated HRV ducting it will not condensate if sealed properly, it needs to have a vapour barrier in the inside and outside and both barriers sealed. -30 here and no condensation ;).
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So I've gotten to the point where I don't want the extra humidity, and it's starting to drip on my plants, as expected :)

I've got a duct sleeve that I can put on there. The insulation is open in the middle, so I was thinking I could use 3mil poly sheeting and ziptie it onto the flexible duct, before adding the sleeve.

You guys think that'd work well enough?
 
Cold$moke

Cold$moke

Well-Known Member
As long as you can isolate the cold pipe from humid air and insulate it it will be fine.

But that is EASIER. Said then done

Let me find uour duct shot and see what i can come up with..

How severe is the wetness on the pipe like beer can wet?
 
Cold$moke

Cold$moke

Well-Known Member
I thought to myself remember dead airspace is a better insulator then anything else

I dont cool my hoods anymore
So my intake can come up from the floor it condensates but doesn't hurt anything (waterproof)

Your poly then insulation idea isnt bad and i would try it before using any of my crazy ideas


This might be a little messy as i havent tested it.

But if that doesnt work take your small chunk of 6 inch preferably outside or on a piece of plastic so you dont make a big mess

Then get a chunk of 8 inch duct and figure out a way to cap the end like using a 8to 6inch reducer.
Tape it like a mofo!

Then fill the inner cavity with a can of the cheapest spray foam you can find let the end dry and cut off the excess now you have an AIR SEALED insulated ducting .

Now my only concern with this is flexibility

Youll definitely loose some flex and like i say i have boarderline retard ideas :)

But it turns out im going to be redoing my ducting this summer as well as venting through the wall presents its own problems in cold climate lol namley ice burgs :)
 
Budley Doright

Budley Doright

Well-Known Member
6B87146E-3D00-453A-9044-375BC1D13B95.png $39 Canadian for 25’ so half that for you lucky bastards lol. As for going through wall if you seal between this and hole with low expansion foam you’ll never have an issue. We do HRV’s in a regular basis and they never condense unless you break the seal of inner or outer skin, yup dead air space ;).
Edit: fixed typo 25’ :( Just finished after work fatty, been a long week :(
 
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JSB99

JSB99

Well-Known Member
JSB99 said:
Anyone got a lawnmower I can borrow LOL! I just trimmed these yesterday...and the day before...and the day before...

View attachment 4110640


Noobs, you'll notice I've got four fans going in this small space. Circulation is crucial, and is much more important than many new growers realize. Right now my plants are growing too aggressively to clear out all the leaves, and let the air flow through them. If I trim too much at once, I could shock them and delay growth, or even turn them hermie. So I trim some each day and fluff up the leaves so they aren't sitting on top of each other, creating condensation between the leaves. I have to create a lot of circulation to get air to the center of the plants through the bushy leaves, without having the fans blow directly on them too much to cause windburn. All the fans are offset to the plants. The plants get wind bounced off the walls, other objects, and the wind created by the oscillating fan. The oscillating fan works great because it does allow some direct wind from the stationary fans. The oscillating fan disrupts the constant direct wind every few seconds
Click to expand...
Another reason to have a lot of circulation is because bugs don't like wind and rustling leaves, so it helps with things like mites.
 
JSB99

JSB99

Well-Known Member
Budley Doright said:
View attachment 4110826 $39 Canadian for 25’ so half that for you lucky bastards lol. As for going through wall if you seal between this and hole with low expansion foam you’ll never have an issue. We do HRV’s in a regular basis and they never condense unless you break the seal of inner or outer skin, yup dead air space ;).
Edit: fixed typo 25’ :( Just finished after work fatty, been a long week :(
Click to expand...
Yeah, I'm going to get one of these. I rigged something temporary. I was out of black poly sheeting, so I wrapped garbage bags and secured them with zip ties. Then I put the sleeve over it. Should work.

PSX_20180323_181137-3120x2340.jpg PSX_20180323_181223-1873x3028.jpg
 
Cold$moke

Cold$moke

Well-Known Member
Budley Doright said:
View attachment 4110826 $39 Canadian for 25’ so half that for you lucky bastards lol. As for going through wall if you seal between this and hole with low expansion foam you’ll never have an issue. We do HRV’s in a regular basis and they never condense unless you break the seal of inner or outer skin, yup dead air space ;).
Edit: fixed typo 25’ :( Just finished after work fatty, been a long week :(
Click to expand...
Just be carful this stuff has failed me before thays why i choose to rig up my own insulated ducts.

And i did a bang up job trying to air seal it

I think it was just pin holes from manufacturing :)
 
Cold$moke

Cold$moke

Well-Known Member
JSB99 said:
Yeah, I'm going to get one of these. I rigged something temporary. I was out of black poly sheeting, so I wrapped garbage bags and secured them with zip ties. Then I put the sleeve over it. Should work.

View attachment 4110886 View attachment 4110887
Click to expand...
Looks good man should work fine as long as its sealed good .

I have to remember you only have cold air going through it not hot moist air going out side ;)
 
Budley Doright

Budley Doright

Well-Known Member
Cold$moke said:
Just be carful this stuff has failed me before thays why i choose to rig up my own insulated ducts.

And i did a bang up job trying to air seal it

I think it was just pin holes from manufacturing :)
Click to expand...
The only time I’ve seen it fill with water is yes if there is a tear. We use imperial typically and it’s always worked well. You also need to tape the inner plastic then tape the outer to seal the inside
 
Budley Doright

Budley Doright

Well-Known Member
Cold$moke said:
Looks good man should work fine as long as its sealed good .

I have to remember you only have cold air going through it not hot moist air going out side ;)
Click to expand...
My exhaust outlet is hidden from veiw as it can be a giant ice water fall lol. Looks a tad suspicious for a unused garden shed lol. Well to me it does, probably not to anyone else. Paranoia will destroy ya I guess lol.
 
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