Is the smell going to creep through the floor?

[yamaha_1fan]

I am planning on setting up my basement garage into a grow room. The thing is the ceiling is not finished, when you look up its rafters, then the subfloor of the main level. Do you think that needs to be seald with some plastic or something? trying to drywall the ceiling will be a huge pain as thers a ton of mechanicals such as plumbing,gas, conduit, etc to work around.

I think I am going to put in 6 1000k watters or 10 600's and duct each one out and use a wall unit AC to cool the room

 

[Guest]

personally i would seal it up with something it will be a major pain to get your self set up and flowering and find your house ends up smelling like fresh green. How about sealing it of with black and white poly. I would do the room with this too that way it easy to clean and you know you have the smell/light controlled.
Good luck with getting set up and the grow!

 

[Guest]

For one I'd go with the 600's instead of the 1k suns. Ducting each one is unecessary and would be a pain. If you're talking about an air conditioner I assume it's a closed room as chilling an open system is nuts. If a closed system, virtually no negative pressure, then yes I would seal the floor. Just staple up some plastic and seal the staples and edges with a little caulk or something. Maybe seal the edges with some cheap wood like a furring strip or something. If you got plumbing, gas, counduit and stuff to work around then still use plastic but seal the large gaps with some canned expanding spray insulating foam. If an open system you'd just have to pull negative pressure in the grow space and there would be no stink leak.

Good luck...

 

[yamaha_1fan]

well i havent decided on how to keep the room cool. thats my dilema. I dont want to find out when i fire up all those lights that my room is 120 degrees. I know from past experience, those lights heat up the room quickly. Thats why i was going to duct them and air cool them.

I am assuming negative pressure means air is constantly trying to come in the room since I would be pulling the air out? That was one of my ideas as well and might be the simplest method for me. I wanted to to put in an intake through the wall into another room and just keep pulling air through the room.

if i ran negative air pressure, is there a guesstimate for how much air needs to come out? I know if measure the room, i can get cubic feet and I will need a blower big enough to keep up. I guess I am asking how many times a minute/hour do i need to empty the room to keep the negative air pressure? hmm guess that depends on how well sealed the room is, huh?

I have a can filter (75 I think) that I am going to use. Think it should go before or after the blower, inside or outsie of the room?


and why 600s instead on 1000's? better light coverage?

 

[Local420]

negative pressure would be more air coming out at a faster rate then going in. The ratio should be around 1:4 (100cfm in : 400cfm out).

The fan should be able to replace the air volume in the room in less than 5min.

Don't know your room dimensions, but the CAN75 is rated for 600CFM, is that enough to scrub the volume of air in your room?

3x 600's are better than 2x 1000 because they give you better light coverage.

this info was gathered from jorge cervantes's book Marijuana Horticulture, pgs. 329-330 and 178.

 

[Guest]

But 3 1k's give more lumens than 3 6oo's do. Not to mention bigger buds.

 

[yamaha_1fan]

Thanks, I have also heard that with alot of lights, 600's were better than 1000's

problem is, now its 10 lights, ballasts, bulbs, hoods etc versus 6

 

[dankiestog]

600s are better if u get the euro 6s u can run 2 600s of 1 ballast...5.7 amps where as a 1000 is 6- 6.3 amps...and u get the extra 200 watts and 2 soures are allways better then 1.. when it comes to lightings..good luck and grow on..

 

[yamaha_1fan]

But 2 1k's give more lumens than 2 6oo's do. Not to mention bigger buds.

yes but the question is is it better to have 10 600watters or 6 1000 watters?? total output is still 6000 but i believe more 600's gives better light coverage from what i have read

 

[Guest]

yes but the question is is it better to have 10 600watters or 6 1000 watters?? total output is still 6000 but i believe more 600's gives better light coverage from what i have read

If lights are stationary then go with the 600 watters thingamawhats.

 

[wickedpete66]

yes but the question is is it better to have 10 600watters or 6 1000 watters?? total output is still 6000 but i believe more 600's gives better light coverage from what i have read

what the room dimensions and height of ceiling? are you growing scrog or tree style these are the questions that need to be asked. If your growing scrog either soil or hydro 1000 wt ballast isn't necessary because you wont need that type of penetration and the 600's will give you better coverage, but if you planning on growing 4-5 ft + trees then the penetration of the 1000wt will be better, I use 1 600wt growing tree style in a 3x3 cab, buy my plants don't get taller than 3 ft.

 

[MTF-Sandman]

^^Very true...how about the details of what your planning to do?

Personally, If you're going to run CO2 I'd go with a sealed setup and use AC. If you're doing large bushes or trees go with the 1k's....plus it's alot cheaper initially to use 1k's, so you may want to use them even if you're doing a SOG since they have a larger usable footprint.

 

[Blackvelvet]

You must spread some Reputation around before giving it to MTF-Sandman again.

 

[TrustNoOne]

adverse has a point with the stationary lights. i'd rather go with 2 1k's on a light rail than 3 stationary 600's. you can put 1k's rite on top of the canopy when they move.
the increase in yield can be pretty impressive.

 

[Guest]

adverse has a point with the stationary lights. i'd rather go with 2 1k's on a light rail than 3 stationary 600's. you can put 1k's rite on top of the canopy when they move.
the increase in yield can be pretty impressive.

Ya know...I got a friend who used 3 600's on a light rail and got 5+ lbs on one cycle with a 4 x 8' custom hydro table. I've never used light movers as I try to keep it simple. I've used 1000's and 600's are my fave except when doing 100% sats or sat dominant plants. The new 600 digitals just rock. I use them and my friends with their 1000's, running the same strain with basically the same nute program, keep on asking why my stuff is so good...and how do I get those great yields...I don't grow trees...I only care about the canopy.

 

[yamaha_1fan]

My space is roughly 40 feet long, by 13 feet wide. The space is rectangular and after the first 12 feet, it juts out another 2 feet so its 15 feet wide for the rest of the space. I dont want to use the whole 40 feet though. The narrower end is the back of the garage and the wider part is towards the front. I also have a gas water heater that I would rather not have in the room. My plan is to put a wall up right before the water heater. That would give me a room thats roughly 13x20. I have a jpeg sketch but cant seem to get into my gallery

I am going to do scrog, no tree grow

I may go with the 1000 watters. not this grow but maybe the next one i'll put them on a mover

 

[TrustNoOne]

Ya know...I got a friend who used 3 600's on a light rail and got 5+ lbs on one cycle with a 4 x 8' custom hydro table. I've never used light movers as I try to keep it simple. I've used 1000's and 600's are my fave except when doing 100% sats or sat dominant plants. The new 600 digitals just rock. I use them and my friends with their 1000's, running the same strain with basically the same nute program, keep on asking why my stuff is so good...and how do I get those great yields...I don't grow trees...I only care about the canopy.

5#. that's a great yield out of 32sq/ft. the rails make my life easier cuz in my soil grow i find you don't have to rotate and move plants around as much because of changing light angles and such. getting rid of hot spots on the buds is the biggest benefit and when i switched to the 1k digitals the light reaches deep and the lower buds are fatter than they would of been if left covered by the canopy. of course this is with my particular setup and others may not see the same results.

 

[niggan8]

600s are better if u get the euro 6s u can run 2 600s of 1 ballast...5.7 amps where as a 1000 is 6- 6.3 amps...and u get the extra 200 watts and 2 soures are allways better then 1.. when it comes to lightings..good luck and grow on..

my 1000watt is 9.1 amps....

 

[Dlux]

well i havent decided on how to keep the room cool. thats my dilema. I dont want to find out when i fire up all those lights that my room is 120 degrees. I know from past experience, those lights heat up the room quickly. Thats why i was going to duct them and air cool them.

Best thing is to cool the lights with air that is sourced outside of the g-room and run a separate fan with the air scrubber for the room. This does two things, it will allow your lights to cool faster with out having to go thru the filter and it will allow your filiter to do it's job easier. You may have to play around with the cfm's a bit in order to find out the best senario, but if most of the heat is exhausted via the ducting in the lights, your ambiant temp will be lower from the beginning.

 

[yamaha_1fan]

Best thing is to cool the lights with air that is sourced outside of the g-room and run a separate fan with the air scrubber for the room. This does two things, it will allow your lights to cool faster with out having to go thru the filter and it will allow your filiter to do it's job easier. You may have to play around with the cfm's a bit in order to find out the best senario, but if most of the heat is exhausted via the ducting in the lights, your ambiant temp will be lower from the beginning.

Ahh good idea. excellent. that will be fairly easy.

I have decided to seal the room the best i can by taping up the ceiling and all studded walls. And I am going to drop in some big wall units.