Thread: 600 HPS Cool Tube Grow Light System

"But your closet is tall enough you'd probably want two vertical lamps. LOL that pesky equipment thing again." AHHHHHHRRrrrggggggg

3 car garage is still bigger then some houses ive seen...but thats an awsome space to have for sure.

ahahaha yea a "clean room" for your semi-conductor sounds right
although they could take that to mean your making porn in there....
which is another good exuse too...


vertical is starting to make more sense to me since the footprint from the tube seems to be alot wider then a normal reflector...not that ive ever seen what it looks like on a large open space.

but i like the way it looks too, like part of a space ship.

thanks for digging for that thread neway, itll pop up again i hope

Hey Al - check out this page. Rock.Steady figured out how to post pics in-line, the way you want to for your cloning photo-essay. He's the guy to ask about it.

Originally Posted by criom

"

ahahaha yea a "clean room" for your semi-conductor sounds right
although they could take that to mean your making porn in there....
which is another good exuse too...

Hey, this is SoCal - one's as good as the other.

jeezus, I take the Queen's flamin' birthday off and I come back to 240 message per hour scroll!

Originally Posted by PharmaCan

Al's instructions said to take big clones so that's what I did. If this comes down to the blame game, I'm not leaving him any outs. LOL

If big clones with thick stems don't work better for you than tiny little snips with the leaves cut in half (the only POSSIBLE way cloning can work, I was told 10-odd years ago... ), I'l eat my hat and BBQ a couple of felt fedoras for dinner. Fat stems root faster and more profusely. Thing is, the old (pre-HID lighting, mainly outdoor) grow guides didn't want you taking cuttings from mainstems as those would produce the best buds. Cuttings were best taken from lowers that wouldn't produce much anyway.

Originally Posted by criom

the humidity stays at 45% (i dont know why) and the temps rise to about 90-100,

If you have a second hygrometer lying around, do a quick comparison, make sure none are lying. Happens from time to time.

Could also have an awful lot to do with this curve.

Notice what happens to RH when you're approaching 38-40C (100-105F). The amount of water you need in the air to increase humidity rises logarithmically.

The air just might be able to hold all the transpired moisture the plants can put out between 3-hourly ventilations and yet not exceed 45% at 90-100F. (but it's a dryyyyyyyyyy heat! )

Astonishing. Wouldn't have expected that.

I've run CO2 before, but always have had dedicated aircon units set for about 85F, which dealt with the humidity- or so I thought. Seems high temp alone may have been enough to control the RH... but these ops were 8 and 10kW, impossible in the spaces used without aircon, so I don't have a comparison base.

ive done one run with it and seen a 30-40% increase, so it seems like i could really pull alot if i had that last lumen/temp golden number dialed into my space.

Sounds like it!

what should the temp/humidity be at in your book?

With CO2, 85F, 90 max.

Originally Posted by PharmaCan

According to those much wiser than me, temps in the 90's are just fine if you are using co2. As far as humidity goes, one needs a dehumidifier in a sealed room.

If the heat produced by the dehumidifier (and they make a fair amount, they are little aircon units) doesn't tip the room over 85 avg 90 max, it'd be a solution for a ventless grow. I rely on my dehumidifier to warm up my op in winter during lights off as well as keep RH under control.

If the heat produced by the dehumidifier (and they make a fair amount, they are little aircon units) doesn't tip the room over 85 avg 90 max, it'd be a solution for a ventless grow. I rely on my dehumidifier to warm up my op in winter during lights off as well as keep RH under control.

Walmart has a cute little a/c unit that sits entirely in the room with a small exhaust vent to outside for the excess heat. Naturally, with the cooling coils inside, it's a dehumidifier too.

hm that curve is interesting, makes misting them seem pointless heh. i will definitely be getting a new hygrometer the one i have is beat to crap and probably off a little.
"Seems high temp alone may have been enough to control the RH." and it is a drrryyyy heat but maybe the fact that i liveo n a lake has something to do the humidity issues.

im gonna go look at these little dehumidifiers and wallmart a/c's today, ive got space in the closet above on a ledge i could stick them..

but theyd probably be more efficient at the bottom on the floor i would assume...guesss it depends on how big they are and loudness.

ug gotta go to wallmart....the HORROR

Good thread, guys. Good stuff for those looking to use cool tubes. In fact, I had a couple questions, and so far they have pretty much all been answered. I do have a couple things to ask/add about piping in a/c air thru your cool tubes...but unfortunately, I have not the time to type it all out right at the moment, so I'll have to come back later and add...when this thread reaches 15 pages. lol...


The Fog

haha please do tell before it gets to 15 pages, my sanity will be gone by then.

"I've run CO2 before, but always have had dedicated aircon units set for about 85F, which dealt with the humidity- or so I thought. Seems high temp alone may have been enough to control the RH... but these ops were 8 and 10kW, impossible in the spaces used without aircon, so I don't have a comparison base."

do you have a thread on this setup you had?

Originally Posted by criom

haha please do tell before it gets to 15 pages, my sanity will be gone by then.

This thread is actually an insidious plot to see which goes first - your money or your sanity. There's actually a pool going on another thread.

Originally Posted by PharmaCan

Hey Al - check out this page. Rock.Steady figured out how to post pics in-line, the way you want to for your cloning photo-essay. He's the guy to ask about it.

Thanks for that, PC!

I think the problem had to do with me being a new user here. Yesterday, "Registered+" started appearing under my username and the "image" button now appears in my WYSIWYG editor.

I have gone around the board looking for user policies, but can't find out what the breakpoint is for giving a user img posting privs, whether that's post count or reputation points. Someone will know and chime in, I'm sure.

Originally Posted by criom

im gonna go look at these little dehumidifiers and wallmart a/c's today, ive got space in the closet above on a ledge i could stick them..

but theyd probably be more efficient at the bottom on the floor i would assume...guesss it depends on how big they are and loudness.

Would put it up high in the room (mine's within a foot of the ceiling)- warm air both rises and holds more water than cooler air... but enough circ fans in your room, the air will be pretty well homogenised and it won't really matter where it is.

The only downside to those portable aircon units is that even though they dump their heat via a roughly 4" vent duct (usually like dryer vent), that tube has to lead outside the op's airmass for the a/c unit to do anything at all. The upside is you get free distilled water for your plants.

I had already told you when you first posted that question in the Feedback/Suggestions section, Al B. I told you you'd have to have 50 posts. You now have that. Go back and read that post I made to ya, man.

Looking forward to the Cloning thread. Maybe it'll get Stickied.


The Fog

Originally Posted by criom

do you have a thread on this setup you had?

Not on those ops. I was brought in as a consultant on those and they're not mine to photograph or talk too much about.

My own op doesn't have CO2 at the moment.

Originally Posted by TheGreenFog

I had already told you when you first posted that question in the Feedback/Suggestions section, Al B. I told you you'd have to have 50 posts.

That you did. Thanks for that.

I can hear your mouse clicking...I see a cloning tutorial in our future.


The Fog

Originally Posted by TheGreenFog

I do have a couple things to ask/add about piping in a/c air thru your cool tubes...

When you consider that the surface temp of an HPS tube in free airspace is going to be at least 200C (~400F), I don't think it'll make much difference to the room air temp if you pipe ambient air at 30C (~80F) or air cooled by aircon at 10C (~50F) through the cooltubes.

Even if the ambient air you pump through the cooltubes is relatively warm compared to that cooled by an aircon unit, it's not going to pick up THAT much more heat if cooled first.

I'd reserve any feed from a ducted aircon system to be put on the plants instead of being used to cool the lights, bearing in mind that there has to be an air exit from the op or return path to the a/c unit if you pipe in cooled air from a central a/c system.

You make an excellent point, Al.


The Fog

Al - If you go to the FAQ and look at the part on reputation it gives you a pretty good idea of how the whole points system works on this board.

I sent you some good rep to boost yer rating. Now that you have the + next to your registered, I think you're like a full-fledged member ...except there's no such thing as a member at c.com

... it's all quite confusing - obviously designed by a dro.

Originally Posted by Al B. Fuct

Yesterday, "Registered+" started appearing under my username and the "image" button now appears in my WYSIWYG editor.

aaaaaaaaand now it's gone, no image button again.

Tried to do a post with manually inserted IMG tags and that won't work either.

Originally Posted by Al B. Fuct

aaaaaaaaand now it's gone, no image button again.

Tried to do a post with manually inserted IMG tags and that won't work either.

Click the little paperclip in the upper tool bar and see if that's what you're looking for. You need to "go advanced" to get the right toolbars.

Originally Posted by PharmaCan

Al - If you go to the FAQ and look at the part on reputation it gives you a pretty good idea of how the whole points system works on this board.

Could you kindly send a link? I have searched everything I could find called a FAQ:

Cannabis FAQs / FAQ , Recipes, Medical Marijuana
Cannabis FAQs / FAQ , Recipes, Medical Marijuana

...and don't turn up anything using the term "reputation."

I sent you some good rep to boost yer rating.

Thanks for that.

Originally Posted by PharmaCan

Click the little paperclip in the upper tool bar and see if that's what you're looking for. You need to "go advanced" to get the right toolbars.

I'm trying to create a new post, which starts in 'advanced' mode.

The paperclip button is for attachments. These appear at the end of the post in a clump.

I want to put images inline with the text, such as I have done in this post on GC.

A photoessay/tutorial makes more sense and is easier to read if the photos appear embedded with the text describing them instead of all the images appearing at the end of the post in a clump.

GC and cannabis.com forums as well as several others use the same forum software- I think it's vBulletin. Disallowing image posting inline is an admin setting- and it's shut off, at least for me, on cannabis.com.

Originally Posted by PharmaCan

Hey Al - check out this page. Rock.Steady figured out how to post pics in-line, the way you want to for your cloning photo-essay. He's the guy to ask about it.

Will do that, but was going to try to contact that user via a PM... and promptly found that there's no private msg facility available- at least to me. Am I missing something here?

Al - the rep thread is in this section. The thread itself is here.

BTW - The rules say 50 posts + 2 weeks membership to be able to post photos - but I think you can get approved quicker with rep points.

But - the Mods watch that section in the first link above and I bet if you posted a thread to the mods with a link to your cloning thread, they'd probably activate your photo privileges right away. The mods here seem pretty reasonable and pretty anxious to spread good info so, it's worth a shot.

Originally Posted by Al B. Fuct

Will do that, but was going to try to contact that user via a PM... and promptly found that there's no private msg facility available- at least to me. Am I missing something here?

Missing nothing - No PMs on this site.

Damn dude - get over this "victim's attitude" will ya.