Nice setup but poor humanity

G

Gibbs

Active Member
Ok I have been suffering from issues with low humanity. Very low, runs between 19% and 24% for the enitire cycle. (veg+flow)

Set up is:
W: 8FT H: 8FT L: 16FT
box is lined with insulated form sheet and a layer of polysteriean sheet, then plastic.
400w lights x 9
250mm RVX exhaust fan
100mm RVX x 2 intakes taking in 18 degress C and 53% humanity
70%/30% soil/perlite medium.

Room drops to 24% humanity even with one of them foggers going
Temps 27-30 rises to degress C

Any thoughts boy as am at a loss on this one. Would be my 5 or 6th go and its just not coming together how I want.

As always thanks in advance for any info.
 
G

Gibbs

Active Member
Am guessing so. Theres 1 x 100m intake RVK fan going and the 250mm taking air out.

Am guessing I need to take more air into the room so the room fills with humid air and vent not as often.

The 250MM fan is going flat out to keep temps down
 
S

Scroggsy

Active Member
You definately sure the RH is that low? makesure your meter is not faulty first. Humidity is normally somthing a grower has to battle against rather than try to promote.
 
The Ruiner

The Ruiner

Well-Known Member
Take different readings from different areas. Get a general average of what you are actually experiencing.

Go high, low, middle, sides...get an all around reading. If you are running foggers and have 53% latent humidity, you would probably be experiencing PM issues.

I seriously doubt there is a humidity problem.
 
S

Scroggsy

Active Member
Gibbs said:
ha i just noticed that thread title, frap me am baked :joint::weed:
Click to expand...
The Ruiner said:
Take different readings from different areas. Get a general average of what you are actually experiencing.

Go high, low, middle, sides...get an all around reading. If you are running foggers and have 53% latent humidity, you would probably be experiencing PM issues.

I seriously doubt there is a humidity problem.
Click to expand...
I would echo that also
 
G

Gibbs

Active Member
using 70%/30% soil/perlite
3 oscillating fans which have 3 settings. all set to 1. There 16inch wide fans.

Ill post once I have taken readings from around the box. Its currently taking a reading from the outtake pipe itself.
53% at the intake pipe
 
S

Scroggsy

Active Member
Gibbs said:
29% going out the outtake pipe.
Click to expand...
It should be measured at canopy level inside of tent not in direct light if possible. And have you definately got one of those thermometer and RH meters because it's the Relative Humidity to the temperature that matters.
 
jcdws602

jcdws602

Well-Known Member
Your exhaust (out) should only come on when your rh exceeds the max.....maybe you should look for a humidity controller so you dont have to do it manually......
 
G

Gibbs

Active Member
Scroggsy said:
It should be measured at canopy level inside of tent not in direct light if possible. And have you definately got one of those thermometer and RH meters because it's the Relative Humidity to the temperature that matters.
Click to expand...
there them white plastic ones with an lcd screen gives max/min for temp and humidity plus showing the current temp/humidity. Am taking readings from different places in the box and will post once I have them all noted.

jcdws602 said:
Your exhaust (out) should only come on when your rh exceeds the max.....maybe you should look for a humidity controller so you dont have to do it manually......
Click to expand...
a controller isnt needed at the moment i dont think because the humidity never gets high enough to need controlled
 
S

Scroggsy

Active Member
Gibbs said:
there them white plastic ones with an lcd screen gives max/min for temp and humidity plus showing the current temp/humidity. Am taking readings from different places in the box and will post once I have them all noted.
Click to expand...
Yep thems the ones. Let us know the results. scroggsy.
 
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