PLEASE HELP...im ready to pull my hair out! HUMIDITY...

I am not sure why I am having such a big problem with keeping ANY humidity in my grow box. I just completely re-built it and still no humidity. Here is what I have:
1) 4' wide x 2' deep x 5' tall box in garage
2) lined with panda paper
3) 400W HPS approx. 18" from canopy...glass on hood soon to come!
4) 6 plants vegging in 12 inch round 3 gallon pots filled with FF soil
5) 2 speed circulating fan in box...
6) active 8" exhaust out the top of box...restricted massively
7) 2 4" holes on bottom right
8) 1 4" x 8" hole on bottom left
9) large room humidifier in bottom right of box
10) numerous soaked sponges in open areas

I live a block from the ocean...ambient temp in garage is about 68 degrees.

CURRENT TEMP IN BOX: 81 DEGREES
CURRENT HUMIDITY IN BOX: 19%

Im not sure what other info might be relevent....please please help me with this issue! Before re-building this box, I had built a small frame and wrapped it in clear plastic to create a humidity dome...but the plants have out grown this contraption and I am now at a loss!

Thank you in advance!

S.L.G.

Have you tried placing a 5 gallon bucket of water in the grow room? That should bring up your humidity. Doesn't necessarily have to be a bucket, but something that you can put a fair amount of water in.

WELL....the humidifier takes up the only open space...its either a bucket of water...or the humidifier. I did have a tray of water before I got the humidifier...not much help!

Just take the bucket and place it underneath your lights with your plants. I bet that will help. I'm sure you can squeeze a little something else in there. :jointsmile:

maybe it will improve when you get your cover glass on your hood ?? ... by the way, ALWAYS run the tempered glass cover, with high-pressure lamps, for safety ... it is true, you do lose a few lumens with the glass, but it is minimal, and I'd rather have my eyesight ... for instance, an invisible crack in a metal halide lamp, emits dangerous UV radiation, harmful to eyes and skin ... good luck :thumbsup:

Have you only checked it with one humidity divice? Maybe you have a bad one. Maybe something to check.

If possible you should add an aircondition line to the box.. That will raise it some.:thumbsup:


Ga Grown!

A/Cs dehumidify......Is it hurting your grow? Give em a spritz of water now and then....dry is much better come flower anyhow

Quote:

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Originally Posted by Cyclonite

A/Cs dehumidify......Is it hurting your grow? Give em a spritz of water now and then....dry is much better come flower anyhow

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Agreed
:stoned:

Quote:

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Originally Posted by Cyclonite

A/Cs dehumidify......Is it hurting your grow? Give em a spritz of water now and then....dry is much better come flower anyhow

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When cold air meets hot air you get condensation that in turn would raise humidity if exhaust were backed down.. Then there would be a heat issue,even with the air.

Ga Grown!

get a swamp cooler:thumbsup:

maybe pick ya up some Rogaine, start seeding them bald patches, too :D

^ lol

Are the plants suffering? What does low humidity do to cannabis? Doesn't lots of weed grow in arid climates?

Actually when air hits the coil the water from the air will condense on the coil and run out to a drain therefor the air is drier also even if you piped the water back in you wouldn't have anymore humidity in the air than you began with.:thumbsup:

Or do you mean running you house a/c condensate line into your grow?

Quote:

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Originally Posted by SeaLevelGrower

I am not sure why I am having such a big problem with keeping ANY humidity in my grow box. I just completely re-built it and still no humidity. Here is what I have:
1) 4' wide x 2' deep x 5' tall box in garage
2) lined with panda paper
3) 400W HPS approx. 18" from canopy...glass on hood soon to come!
4) 6 plants vegging in 12 inch round 3 gallon pots filled with FF soil
5) 2 speed circulating fan in box...
6) active 8" exhaust out the top of box...restricted massively
7) 2 4" holes on bottom right
8) 1 4" x 8" hole on bottom left
9) large room humidifier in bottom right of box
10) numerous soaked sponges in open areas

I live a block from the ocean...ambient temp in garage is about 68 degrees.

CURRENT TEMP IN BOX: 81 DEGREES
CURRENT HUMIDITY IN BOX: 19%

Im not sure what other info might be relevent....please please help me with this issue! Before re-building this box, I had built a small frame and wrapped it in clear plastic to create a humidity dome...but the plants have out grown this contraption and I am now at a loss!

Thank you in advance!

S.L.G.

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do away with the sponges and replace with 32 0z bottles of vinegar with a shutoff valve at the bottom of the bottle(any aquarium store has 'em) drippin into a tightly lidded tupperware bowl that has 4 0z.'s of baking soda in it at a rate of 1 drip per second(of course yur gonna make a hole so the vinegar can drip into the bowl)and have yur tubing(5mm) running out of the other end of the tupperware to the ceiling and coming down on yur babies. i would start with 1 in front of yur grow box and 1 in back with the tubing running down on different parts of yur crop.
Success
cityokie:pimp:

o and keep yur babies moist but not to wet.try and create a rain forest atmosphere.also line the floor where each container is with a plastic grocery bag.water enuff so that a little excess runs out of the container and onto the bag. not to much, just a little. a good gauge of how much to let runoff would be the next time u check on yur babies everything has dried out under each container.also, mist them every now and then, u kno, foliar feed.
cityokie;)

These can be pricey so dont know if your up for it I have one just as decoration but may need it for other purposes once my seeds arrive ;)

h++p://www.maplin.co.uk/Module.aspx?ModuleNo=35215

(change ++ to tt)..Not sure if outside links are aloud

Here's an idea for your humidity problem... I just did this with my humidore the other day, b/c out in CO, it's so stinking dry that everything made of wood cracks. If your box is made out of wood, wipe down all the wood with a sopping wet sponge and make sure your box is sealed well. Your humidifier is probably working overtime to bring up the humidity and can't. Once you bring the humidity up by wetting everything down, the humidifier should easily be able to sustain it, just like a humidore.