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sudont
Stranger ThanFiction

Registered: 01/19/06
Posts: 129
Loc: Chicago
Last seen: 13 years, 11 months
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Cool Mist - Enough Humidity?
#5323849 - 02/21/06 12:18 PM (17 years, 11 months ago) |
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Hi, I'm using a Vick's Cool Mist connected by one foot of three-quarter inch hose in my chamber. The chamber is 8x14x20 inches, and I have a couple of inches of wet Perlite on the bottom. I have four small holes near the bottom for CO2 egress. I'm wondering if I'm getting enough humidity for a few reasons.
1.) I don't have a decent hygrometer. It's just not in the budget right now. 2.) When I've stopped running it, and instead misted, the chamber stays wet. But if I run the Cool Mist, any water beads on the walls dries up. 3.) It doesn't seem to go through water very fast - it lasts for days!
So I'm asking those of you who use the Cool Mist, does it provide enough humidity? And how should I expect things to look inside? Thanks!
-------------------- sudon't sudo rm -R /*
Edited by sudont (02/21/06 12:21 PM)
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Sinthetic
Stranger


Registered: 12/05/05
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Re: Cool Mist - Enough Humidity? [Re: sudont]
#5323881 - 02/21/06 12:30 PM (17 years, 11 months ago) |
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That's a small container to have a coolmist hooked up. Is it for cakes or casings?
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Rahz
Alive Again


Registered: 11/10/05
Posts: 9,230
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Re: Cool Mist - Enough Humidity? [Re: sudont]
#5323924 - 02/21/06 12:43 PM (17 years, 11 months ago) |
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Several things you should consider: If you're running the cool mist constaintly, there should be very little temperature variation between the inside and outside of the tub. Temp variation is what causes humidity to condense (and stay condensed) on the sides.
However, running the cool mist full bore into that small chamber can lower humidity. I'd suggest you vent some of the output into your room. I'm running 3 chambers, all larger than yours, off 1 cool mist. I'm not really sure of the dynamics, but it seems that because I have 3 outlets, the air moves slower and has more time to mix with the mist. My humidity is so high I had to drill holes in my fruiting chamber to get the humidity down. Note than none of my tubs have condensation on the sides.
Rahz
-------------------- rahz comfort pleasure power love truth awareness peace "You’re not looking close enough if you can only see yourself in people who look like you." —Ayishat Akanbi
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sudont
Stranger ThanFiction

Registered: 01/19/06
Posts: 129
Loc: Chicago
Last seen: 13 years, 11 months
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Re: Cool Mist - Enough Humidity? [Re: Rahz]
#5324103 - 02/21/06 01:42 PM (17 years, 11 months ago) |
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So you think I should drill another vent hole in the Cool Mist that would just vent into the room to reduce flow? Like how big?
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Edited by sudont (02/21/06 01:43 PM)
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Oatman2000
-=Outa Space=-



Registered: 05/10/05
Posts: 2,877
Loc: Planetary Nebula
Last seen: 1 year, 4 months
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Re: Cool Mist - Enough Humidity? [Re: sudont]
#5324169 - 02/21/06 01:57 PM (17 years, 11 months ago) |
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i have one cool mist hooked to my whole terrarium.
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Spawning to COIR
My Chocolate Recipe
WBS QUART SPAWN JAR PREPERATION ----------------------------
4-PO-DMT; 4-phosphoryloxy-N,N-dimethltryptamine
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Rahz
Alive Again


Registered: 11/10/05
Posts: 9,230
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Re: Cool Mist - Enough Humidity? [Re: sudont]
#5324195 - 02/21/06 02:03 PM (17 years, 11 months ago) |
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Well, the ideal outflow area should be equal to the original outflow area you covered up. Any smaller and you're constricting the units potential which can cause it to go bad before it's time. You don't want to go too big, but you can always patch a hole. Gauge your tube size in comparison to the original outlet. Purse your lips and slowly blow. That's about how much air I like going into my tubs.
Rahz
-------------------- rahz comfort pleasure power love truth awareness peace "You’re not looking close enough if you can only see yourself in people who look like you." —Ayishat Akanbi
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hyphae
born to grow


Registered: 12/13/02
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Loc: the rain forests
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Re: Cool Mist - Enough Humidity? [Re: sudont]
#5324201 - 02/21/06 02:05 PM (17 years, 11 months ago) |
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Answer to your question is most definitely not always. Your holes (FC) are they stuffed with polyfil? Many times coolmists by themselves ran on high won't produce 90-95%+ humidity they just supply way too much fresh air to obtain real high humidities. Now this depends alot on your ambient Rh levels also of course as well as the time of year. I've seen way too many setups using just coolmists that are definitely too dry especially for cakes. If the coolmist is adjustable at all set it on the lowest setting. I have used coolmists in small 38 liter bins but also misted twice a day this was perfect. Place a filter over the intake of your coolmist to cut down on flow and keep contams at a minimum is a perfect way to adjust airflow, the thicker the filtering material the less the flow. I'm sure different coolmist work better than others as many do have good results using only a coolmist but that in no way means that your concerns are not valid. GL
-------------------- Getting the most out of your casings!, A pinning strategy. Oyster Shell "Flour" $2 for 1lb. a hell of a deal Not what is overlay but rather what overlay is Gas Exchange vs. FAE "We all have priorities. I used a closet once setup a nice little lab trouble was all the shit that was in there ended up in the bedroom that pissed off the GF then I ended up dumping her as she was getting in the way of my sterile culture technique! Ya I got priorities too!!!"
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sudont
Stranger ThanFiction

Registered: 01/19/06
Posts: 129
Loc: Chicago
Last seen: 13 years, 11 months
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Re: Cool Mist - Polyfill [Re: hyphae]
#5326662 - 02/22/06 12:16 AM (17 years, 11 months ago) |
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Quote:
hyphae said: Answer to your question is most definitely not always. Your holes (FC) are they stuffed with ?? Many times coolmists by themselves ran on high won't produce 90-95%+ humidity they just supply way too much fresh air to obtain real high humidities. Now this depends alot on your ambient Rh levels also of course as well as the time of year. I've seen way too many setups using just coolmists that are definitely too dry especially for cakes. If the coolmist is adjustable at all set it on the lowest setting. I have used coolmists in small 38 liter bins but also misted twice a day this was perfect. Place a filter over the intake of your coolmist to cut down on flow and keep contams at a minimum is a perfect way to adjust airflow, the thicker the filtering material the less the flow. I'm sure different coolmist work better than others as many do have good results using only a coolmist but that in no way means that your concerns are not valid. GL
Thanks for your reply! What exactly is polyfil? Does it go by other names? Where is it commonly purchased? It's very dry here, as it's Winter here in the Frozen North. Ambient Rh is around 50% or less indoors. I can barely keep my cigars at 70% Rh at 63?F, so I know it's dry, (shroom room is at 70?F during fruiting stage). There is no adjustment on the model I have.
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Razman
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Re: Cool Mist - Enough Humidity? [Re: Oatman2000]
#5326700 - 02/22/06 12:24 AM (17 years, 11 months ago) |
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Quote:
oatman2000 said:

i have one cool mist hooked to my whole terrarium.
im using that exact same greenhouse, and one coolmist only puts it to 70% max..
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Oatman2000
-=Outa Space=-



Registered: 05/10/05
Posts: 2,877
Loc: Planetary Nebula
Last seen: 1 year, 4 months
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Re: Cool Mist - Enough Humidity? [Re: Razman]
#5327409 - 02/22/06 09:05 AM (17 years, 11 months ago) |
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i got 95% what's your temp?
my whole growroom is set to 77 degreese. the temp also helps with RH
--------------------
Spawning to COIR
My Chocolate Recipe
WBS QUART SPAWN JAR PREPERATION ----------------------------
4-PO-DMT; 4-phosphoryloxy-N,N-dimethltryptamine
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