Humidity - Low RH ?!?

GrowMoe

GrowMoe

Member
I'm having problems with low humidity. I've heard someone state that he can get his RH down to 30% in flowering. Well I have a different issue.

My RH will not come above 30%! I have two tents; I get 30% RH due to the 3 plants that are there one of the tents, and in the other I can't keep it over 10%! There are 11 clones and 6 seedlings in this tent.

Actually my Hygrometer "nills" out. It doesn't say 1 or 0, it just goes --

I spray frequently and placed a bowl of leca with water in both tents. Doesn't help at all. The RH goes up to like 11-20% and then half an hour later it's down to -- again.

I need to get the RH up and stay up. Any tips besides a Humidifyer?
 
StreetRider

StreetRider

Active Member
Place a fan blowing over the bowl of water. You can also place a rag half in / half out f the bowl.

Best of luck.
 
GrowMoe

GrowMoe

Member
StreetRider said:
Place a fan blowing over the bowl of water. You can also place a rag half in / half out f the bowl.

Best of luck.
Click to expand...
Yeah. I'm getting a fan today, but the cloth/rag thing isn't efficient enough. Does NOT raise RH noticeably...

Thanks for the reply
 
buggin69

buggin69

Active Member
are you exhausting an excessive amount?... what's the RH in the outside environment... you'll need a hell of a humidifier if you're just exhausting all the humidity you make outisde
 
GrowMoe

GrowMoe

Member
buggin69 said:
are you exhausting an excessive amount?... what's the RH in the outside environment... you'll need a hell of a humidifier if you're just exhausting all the humidity you make outisde
Click to expand...
I'm not exhausting an excessive amount. As the temps are high I have to keep venting.
I do have constant air exchange, and I bet the RH is really low both outside and in my growroom. So I have to have a humidifier in the growroom, and not in one of the tents...

I planning on purchasing one soon, so we'll see how it goes. Thanks for the replies!
 
Xan2

Xan2

Well-Known Member
Keep spraying water few times a day over the plants, it will helps them since there is not much humidity.

Also you can place open 2L of water and let them evaporate... if your temp is lil high will gives you nice humidity.
 
buggin69

buggin69

Active Member
for one heat causes lower RH anyway... and constant exhaust also will cause low RH if ambient RH is also low

unfortunately the only cure is either venting your light directly so you don't pull so much humidity out... or adding more humidity by any (and maybe every) means available

if it's that big of an issue get misters on a short cycle timer (i wouldn't be able to spray daily personally)
 
GrowMoe

GrowMoe

Member
Xan2 said:
Keep spraying water few times a day over the plants, it will helps them since there is not much humidity.

Also you can place open 2L of water and let them evaporate... if your temp is lil high will gives you nice humidity.
Click to expand...
I have tried with two bowls of leca and water but it does nothing... I am spraying every so often manually though.

buggin69 said:
for one heat causes lower RH anyway... and constant exhaust also will cause low RH if ambient RH is also low

unfortunately the only cure is either venting your light directly so you don't pull so much humidity out... or adding more humidity by any (and maybe every) means available

if it's that big of an issue get misters on a short cycle timer (i wouldn't be able to spray daily personally)
Click to expand...
I have noticed this too, so I will have to get a humudifier sooner or later. for now I'll stick to just misting manually.

Thanks for the replies.
 
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