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Lazymans idea of a perfect growroom, come beat me up! ;)

Lazyman

Overkill is under-rated.
Veteran
Ok, so my idea of a perfect growroom is one that is very low maintenance, does not require handwatering or manual labor on any regular basis. I always try to avoid moving parts whenever I can, so there are fewer parts to break and replace/maintain.

I know there are a lot of threads in here on what's the best bulb/hood/ballast/growing system etc, so I thought I'd throw in my $.02 on these things and see how much shit I get for it :laughing:

I'll try to keep specific sizing on things like AC and dehumidifiers vague since everyone runs different amounts of light, but since I like to do things big most of this will be appropriate for rooms 6KW and up, though it can easily be adapted much smaller if desired.

So the idea will be to pick all of the "best of breed" parts so we can design an electrically efficient, high-yielding system that requires little to no maintenance. BTW< I will do a lighting thread in the future, but even with *Mistress"s help there is a ton of data to gather on electrical efficiency, par watts and ballast efficiency.

The room:

I've always had a hard-on for basements, stable temps, concrete floors, and usually good access to water, power, and often they have sumps and floor drains. If you want to get into one just use basement as a search term on Craigslist rentals, worked for me.

This room will be well insulated and sealed so CO2 can be implemented. Walls and ceiling will be insulated with mylar-faced rigid insulation (styrofoam) and taped together with aluminum tape to keep the vapor barrier intact. The edges on the top and floor sealed with Great Stuff spray foam to seal any cracks/leaks.

For water, we need clean pure water in most cases, so a large Reverse osmosis system should be employed to keep the nutes consistent. See the link in my sig for automating reservoir top-offs and float valve/reservoir setups that won't flood/overflow.

To water the plants, I'm going to recommend the Tropf Blumat auto-waterers for all plants except the clones. Non recirculating, gravity-fed, drip to waste on demand. Once they are dialed in, they will keep the overall moisture level in every pot exactly what you want it to be. If the reservoir is kept full, your plants will NEVER run out of water, even if you happen to be gone for a month. A small catch tray under each pot helps catch any accidental runoff. This system will use no water pumps and no timers, it is all gravity feed. There is a good thread on them in the Growers Forums.

For medium, and just to keep it very simple, use either good soil or good coco, the above waterers will work with both and allow you to feed through them. If you want to do hydro and trays, well, go for it! But then you have to have pumps and timers, which means you're watering when YOU want to, not when the plants NEED it.

For security and safety, I like hard-wired camera systems inside and outside the grow, as well as a dialer to call or text me when water is on the floor or temps get too high. Many companies make these systems now and they are pretty affordable generally. Smoke detector in every room, CO detector in the flower room, and at least 1 Halon fire extinguisher per 4KW. Deadbolts, secure doors and windows are important too of course, but I don't want to get too involved in a detailed security thread here. If someone knows of one they want me to reference add the link and I'll paste it here.


To keep a self-contained and self-sufficient grow room, we need a handful of separate rooms. This will keep it so the only thing that ever leaves the room is some occasional garbage, and some pre-packaged, odorless bags of dried bud and trim.

1 small room as an airlock, where no light can escape when the outside door(s) are opened. This is a good place to put a small fan with an ozone generator so any air lost in a door transition only smells of ozone. No plants or loitering in the airlock! Ozone is bad for you and plants in high concentrations. Tarp zippers over Panda plastic are my favorite!

1 room for trimming and packaging, equipped with a small carbon scrubber/fan combo, comfy chairs, trimming tools and a FoodSaver vauum sealer. A radio or TV is nice so you and your friends don't get bored on big trim jobs.

1 room for drying, I like to keep my drying room at 70*F and 40-50% humidity, so an exhaust fan and a small (45-pint) dehumidifier would be good here. I like the hanging net bags, they hold about a pound per shelf (4-5# per unit) and can be easily flipped over to "stir" the drying product. They go for $20-30 at most hydro shops now. THis room only needs to be big enough to house all of the above, or it could be combined with the trimming room if space is at a premium.

1 room for mothers/clones on 24/0 lights, all T-5 lighting at 20-30wpsf. Dehumidification isn't usually necessary if it's a dedicated room for these, as high RH isn't often a problem. A small intake and exhaust fan (blowing into the flowering room) where there are significant climate control devices is typically sufficient for cooling these rooms. An oscillating fan for moms is a must. A simple temp controller can run the fans.

The size of this room depends on the size of your grow, but I figure 25% of the flowering space unless you can put in some big steel shelving for trays of clones and moms. This room can be combined with the veg room if needed for space reasons.

1 room for veg on 18/6, very similar to the above room in terms of ventilation, but I'll add a small 45-pint dehuey and a second oscillating fan. I'd recommend 400MH lighting for veg over a 4X4 area, or about 25wpsf. Use digital ballasts with SunSystem II hoods, air cooled if you can. 130CFM per hood.

I like plants vegged about two weeks, though this depends heavily on strain. Avoid sativas and their strong hybrids if you want to produce maximum yield. A simple temp controller can run the fans.

The veg room typically takes about 30% of the size of the flowering room.

1-2 rooms for flower. 12/12 lighting of course, and due to their electrical efficiency, I'm recommending Gavita/Agrosun 600W HPS bulbs with the built in reflector for their superior lumen output (90K vs 80K for most.) Also using SS2 air-cooled hoods (130CFM per hood, pull from outside and push outside) and digital ballasts on 240V power, this will give you maximum lumens on the canopy while using less electricity than 1KW lights. Each 600 can light a 3X3 or 3.5X3.5' area, but keep the plants under 3' total height at finish so you get good penetration to the lower branches.

If you want to run two rooms do it on a flip flop, this keeps your power consumption even all day long, but can be difficult to manage due to the schedule.

For simplicity I'm going to recommend 1 large flower room, but harvesting half of the room every month. This gives you the following advantages:

Better side lighting from all lights on at once
Easier schedule to remember (easier maintenance)
Two stages of the room (for reservoirs) so you can move plants from the "early flower" side to the "late flower" side without having to change nutes.
No flip flop box to buy
Power is usually cheaper at night, and extra cooling won't be need in the "day lights on" room.


For environmental controls, I'll heartily recommend the Sentinel CHHC-1. It does day/night temps, day/night RH, night device and CO2 control, with fuzzy logic for you tank-CO2 guys.
A mini-split or split-AC is the best bet for most sealed grow rooms, Excel air makes some do-it-yourself kits, even a Stealth line that has the noisy compressor indoors in a sound-insulated box. Pretty slick! For day (lights on) temps, I would keep it at 85*F and 50% RH.
A sufficient dehumidifier would be needed, I'm getting a Santa Fe Max Dry shortly that does 150 pints per day, but uses the same amount of power as the 45-pint units. Plumbed to drain into the sink or the reservoir, your choice.

For CO2, the water-cooled HydroGEN unit is hard to beat in terms of output, price, and heat reduction. I've seen them for $300 online, and should be plumbed to tap water, not a water pump. Drain to waste. They won't run very long at the max settings, and they claim 86% of the heat is sent out with the waste water. They can produce 36K btu of heat/co2, so that is 12K more than the GreenAir/CAP/Sentinel units available today, and for half the money. See my thread in this forum on the "How to's and why fors of CO2 supplementation for growers" for more detail on CO2.

2-3 reservoirs would be dedicated just to flower, but I like to keep all of my
reservoirs in one spot so I can do easy tank dumps, add nutes, and monitor all the meters in one place. One of the aforementioned security cameras can point at a bank of meters, so I can watch them remotely as well.

A pH doser is nice, but if you need 5 of them this can be an expensive add-on.

For odor control, big carbon scrubbers, I like a CAN150 per 4KW of light with a speed-controlled 12" Vortex per. No smell.

I also use 1 oscillating fan per 1KW of light too, hard to have too much air movement in a big room.

I don't want to get into nutes and genetics in this thread, since it's more about room design, and there are as many opinions on each as there are members here.


So there we have it, no light leaks, no heat problems, no humidity problems, high CO2, automated watering and res top offs. The only thing that would need to be done manually is add nutes to the res, manual res changes, and manually rotating plants every few days (which isn't the end of the world if it gets missed for a week.)

With proper genetics and nutes, there is NO reason a room like this couldn't hit 1GPW every 60 days, maybe even more.

Ok, now let me have it! :laughing:
 

rty007

Member
that is one hell of a personal stash ;)
but yeah, couldn't agree more, basements/underground basements are the best way to go. keeps the environment quite constant, well... i am gonna stop rambling and just spread some rep ;)
 

inreplyavalon

breathe deep
Veteran
sweet essay Lazyman. What may i ask is the 'vapor barrier for? I understand sealing the room for CO2, but is the vapor to keep humidity out?

Also in the room for mothers and clones you mention to exhaust into the flowering room? This would create a bit of positive pressure right? Not a big concern, just making sure i understand this all.

I will definitely reference this post in the future as the nuggets of information are abundant.
Thank You!
 

noone88

Member
Skip the HydroGEN. I am running two and they are getting progressively worse (not firing). I think they only have Propane-versions now. You can get it retrofitted for NG, but they have not solved the non-firing problems.

I wouldn't bother running aircooled hoods. No matter how well you seal the hoods and the vents/ducting, you will lose CO2.

Another idea is just to do a vertical grow. Drop 1k watt bulbs and grow trees.
 

Lazyman

Overkill is under-rated.
Veteran
sweet essay Lazyman. What may i ask is the 'vapor barrier for? I understand sealing the room for CO2, but is the vapor to keep humidity out?

Also in the room for mothers and clones you mention to exhaust into the flowering room? This would create a bit of positive pressure right? Not a big concern, just making sure i understand this all.

I will definitely reference this post in the future as the nuggets of information are abundant.
Thank You!

Thanks to you man! I will be adding some more links to this thread in the next few days too,

Vapor barrier is to keep the external dewpoint from creating condensation on your interior walls.

I like veg rooms with one fan in, one fan out on the same controller. That way the net pressure change is zero in each room. It's drawing in the same amount it's exhausting (no ductwork if possible.)

Cheers M8
 

Lazyman

Overkill is under-rated.
Veteran
Skip the HydroGEN. I am running two and they are getting progressively worse (not firing). I think they only have Propane-versions now. You can get it retrofitted for NG, but they have not solved the non-firing problems.

I wouldn't bother running aircooled hoods. No matter how well you seal the hoods and the vents/ducting, you will lose CO2.

Another idea is just to do a vertical grow. Drop 1k watt bulbs and grow trees.

Noone, are you running those on a pump or tap? Everyone I've talked to running them on tap water had no issues.

I disagree on the hoods, if you blow air through them and seal the lens with foil tape, you can create a positive pressure system that cannot suck in CO2.

I did thing about vertical growing, and would love to someday, but my new spot has 6' ceilings so it wouldn't be nearly as vert as I would want. I agree that it is a more efficient way to grow, and man, do I ever dig efficiency.
 

noone88

Member
Yes, HydroGEN with the water valve, drain to waste.

I had one since April that was successfully firing. However, in the last few weeks, the unit is not firing successfully. I just put a cycle timer on it.

My second unit which I picked up during the summer required a LP to NG conversion done by HydroInnovations will not successfully fire half the time.

Em*inem had the same firing problem with his LP version of the HydroGEN.

I still think the heat savings is worth it, especially if you're in warmer temps, if you put a cycle timer on it. It's just... annoying.

You will need the HydroGEN, water valve, and the ART-DNe.

Regarding the sealed hoods, I thought the same too. But there's an easy way to find out. Time how long it takes between CO2 firings with your vented hoods on and off. When my vented hoods are off, I go 15-20 minutes between my HydroGEN firing. With my vented hoods on, my CO2 fires every 10 minutes. I have two different flowering rooms with the same setups and the same results.

I use a manifold hood ventilation system powered by a 10" intake/exhaust MaxCanFan cooling 6-7k watts.

Lastly, ICMag is probably the best forum for discussing advanced grow room design. Hopefully with the changes in MMJ laws, the reality of growing in large industrial space is becoming a reality. We need to brainstorm and come up with good ideas for the reality of putting together 20-50k watt grows. I am guessing that has been trade secrets for most clandestine growers.
 

619Sativa

Member
I agree with your idea of a perfect room, however, I would also turn the mother/veg/clone room into one, and seal that bad boy up to. That way you can be more certain that the plants you are bringing into the flower room are pest free and healthy. And I don't like running to many lines, so I would probably skip the hydrogen and go with the regular co2 generator. Other than that, I think you hit the money.
 

PharmaCan

Active member
Veteran
I disagree on the hoods, if you blow air through them and seal the lens with foil tape, you can create a positive pressure system that cannot suck in CO2.

Here's the thing about blowing air through your hoods - if any part of your ductwork fails, you will be pushing large amounts of hot air into your grow room. Been there; done that - cooked a beautiful crop at seven weeks.

Besides, with a sealed room you will need a/c. You can effectively cool your hoods without running hurricane force winds through them. Seal the hoods the best you can then suck the air through the hoods and keep the air flow at the minimum you need to maintain the temps you want. Personally, I think you're better off to lose a little co2 than to risk losing a crop.

I'm selling my house and I'll be buying another one. The area I want to move to is mostly 60's era ranch-style houses with big back yards. I'll be building a grow room of around 900 sq.ft. there. If I can find thick plexi-glass (or any kind of clear, structural material) that will allow the needed rays of the sun to penetrate, I can install retractable interior panels (think roll-up garage door run horizontally - but a much more sophisticated system) that can make the interior light-proof. I can then grow indoors without the expense of lights. ...and, since this is California and I'm med legal/compliant, they can fly their helicopters over me all day long but all leo can do is look, not touch. lol

PC
 
Last edited:

ItsAllOver

Devil's Advocate
Awesome thread. Thanks for taking the time, Lazyman!
Noone, you are right about trying to work out industrial sized grows in anticipation of legalization. Surely there are those doing it, as Lazyman has shown with a professional setup, albeit not the possible size that would be the norm upon legalization. Hmm, it would be great to have a greenhouse or warehouse and the legal atmosphere in place to do what I wanted to do!

In light of eminem's post about plant disposal that I think woke up a few people, what do you large scale guys think about adding large disposals to plumbing appliances for getting rid of plants in the event of an emergency? Those SaniGrind toilets seem like a good thing to have around... I know that in many cases, you folks don't have the legal worries to warrant this, but I figured I'd bring it up for those that do...

if any part of your ductwork fails
is the important part of that. Instead of changing the system up so much to avoid this problem (that I'm glad you brought up!), just work on securing that duct work. If you're going all out with the rest of the grow, just use worm gear clamps then mastic for a connection you can be confident about.

Peace out, folks. Thanks again!
 

PharmaCan

Active member
Veteran
Awesome thread. Thanks for taking the time, Lazyman!

is the important part of that. Instead of changing the system up so much to avoid this problem (that I'm glad you brought up!), just work on securing that duct work. If you're going all out with the rest of the grow, just use worm gear clamps then mastic for a connection you can be confident about.

Peace out, folks. Thanks again!

The connections were fine. The ducting failed - the duct material just gave way and then tore all the way through.

PC
 

Lazyman

Overkill is under-rated.
Veteran
Yes, HydroGEN with the water valve, drain to waste.

I had one since April that was successfully firing. However, in the last few weeks, the unit is not firing successfully. I just put a cycle timer on it.

My second unit which I picked up during the summer required a LP to NG conversion done by HydroInnovations will not successfully fire half the time.

Em*inem had the same firing problem with his LP version of the HydroGEN.

I still think the heat savings is worth it, especially if you're in warmer temps, if you put a cycle timer on it. It's just... annoying.

You will need the HydroGEN, water valve, and the ART-DNe.

Yeah I'd read of some NG unit problems, but they still seem to be selling them on their site. I noticed last week they had the new Pro model out, I wonder if it resolves any of the previous unit issues. Time will tell I guess.

So I'm curious, did you have firing problems on the controller, but not on the ART-DNe timer?

So for NG users, would you recommend the Hydrogen or something else?

I think the above room would have an excess of cooling btus, so I think if one (relatively small) element generates some heat it would be ok. Hell, in the winter months it might be nice to have the heat in a lot of the country,

Regarding the sealed hoods, I thought the same too. But there's an easy way to find out. Time how long it takes between CO2 firings with your vented hoods on and off. When my vented hoods are off, I go 15-20 minutes between my HydroGEN firing. With my vented hoods on, my CO2 fires every 10 minutes. I have two different flowering rooms with the same setups and the same results.

I use a manifold hood ventilation system powered by a 10" intake/exhaust MaxCanFan cooling 6-7k watts.

Thanks man, that's good to know too. I'll keep an eye out for that for sure. Another one of those things that works best on paper? :p Story of my life, lol

BTW, good practical test! That was how I determined my current grow room leakage rate (about .2cfm per minute, way too fast.) Did you get a chance to play with a speed controller to see if the ppm's fluctuated? That would drive me :wallbash: till I knew why, I can't stand mysteries!


Lastly, ICMag is probably the best forum for discussing advanced grow room design. Hopefully with the changes in MMJ laws, the reality of growing in large industrial space is becoming a reality. We need to brainstorm and come up with good ideas for the reality of putting together 20-50k watt grows. I am guessing that has been trade secrets for most clandestine growers.

I agree, and I do know a guy who does up to 150KW setups. I don't think I'd post much about them here though, I think it might attract a lot of attention though, but there's good threads on medium (12-30KW) commercial grows here too.

Personally I don't want any large-scale guys hunting me down either, you never know how folks will react when profits are threatened. :yoinks:


Anyway, I know all grows have sacrifices that have to be made for all sorts of good reasons. I guess my reasoning is to start with strict ideals, so you at least know what "optimal" is and can work backwards as little as possible on each aspect. I try to be a perfectionist at heart, but I also have this lazy streak that makes me dream up crazy automation to try out. :joint:

Thanks for the help and input guys, tell me what else I missed, what else could be optimized? What is your idea of perfect?:abduct:
 

Lazyman

Overkill is under-rated.
Veteran
what about wrapping all of your ceilings/walls in a FLIR blocking material?

like, http://www.discount-hydro.com/productdisp.php?pid=552&navid=33

Yep, I'd say eliminating a radiant heat signature, or at least reducing it would be a good idea! I've seen guys build little outdoor shelters for exhausts, or pipe out the chimney or plumbing, always nice if you can do it safely!

For that matter, I think insulated ductwork, reservoirs, (plumbing?) and HOODS should probably all be insulated to make the power use more efficient. Those new hood covers are pretty slick...

Oh yeah, should I be updating the OP with "improvements" or should we leave them in the thread?
 

noone88

Member
I had firing problems with the HydroGEN. My CO2 controller (sentinel CPPM-1) and the ART-DNe had no problems.

The HydroGEN would fire, I can see the flames but once the ignition stops, the flames go away while the water continues to pump through the unit.

Diesel/NG generators are pretty common in SoCal for people that want to stay semi off-the-grid.
 

*mistress*

Member
Veteran
:wave:
:lurk:

perfect for *mistress* is hand-watered trees (4x4x4'+)...

large plants. ac. 1k's, bare bulb. 5 gal container in 10 gal container.

no hoods. no reflectors. no air pumps. no air cooling. no ducting. no isles. no tables. no poly hoses.

just huge plants & full strength nutes & full spectrum light. mh & hps. should only be enough room to water plants. all other space filled by tree of green.

hand-watered. consecutive 5 gal buckets of solution. watered until run-off, or ~1-1 1/2" of solution in run-off basin. repeat every 2-5 days, or when run-off basin is dry.

1-4 plants per 1k. veg & flower. veg 24/0 for 24/7. flower min 60 days 12/12. end.

&... most importantly...

enjoy your garden!
;):ying:
 

Lazyman

Overkill is under-rated.
Veteran
:wave:
:lurk:

perfect for *mistress* is hand-watered trees (4x4x4'+)...

large plants. ac. 1k's, bare bulb. 5 gal container in 10 gal container.

no hoods. no reflectors. no air pumps. no air cooling. no ducting. no isles. no tables. no poly hoses.

just huge plants & full strength nutes & full spectrum light. mh & hps. should only be enough room to water plants. all other space filled by tree of green.

hand-watered. consecutive 5 gal buckets of solution. watered until run-off, or ~1-1 1/2" of solution in run-off basin. repeat every 2-5 days, or when run-off basin is dry.

1-4 plants per 1k. veg & flower. veg 24/0 for 24/7. flower min 60 days 12/12. end.

&... most importantly...

enjoy your garden!
;):ying:


Hey Mistress, thanks for the input! My only caution with anything hand-watered is the lack of automation, and the difficulty with scaling it up.

Handwatering 30-50 big trees is a chore, but more than that and it becomes a real roadblock. I also can't leave that room alone for more than a day or two, which means I can't run more than one spot myself.
 

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