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Monotub temperatures on tile floor
    #25517947 -

So Im doing two 66qt monotubs, one stacked on the other sitting on tile floor.. The top monotub is condensing and the lid is cloudy but the bottom monotub's lid isn't cloudy.. Both were set up the same, tight polyfil stuffed in holes and saran wrapped on lids..
Is the reason the bottom isn't condensing on the lid because its on the floor and the tile makes that monotub internal temperature cooler? I just added cardboard on the bottom of the monotub so its not directly touching the tile floor.. what do you guys think?

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Re: Monotub temperatures on tile floor [Re: rawdog]
    #25518063 -

I wouldnt have them on the floor... but cardboard would likely be ok... though I don't suspect it'd be an issue unless it's cold ... reason the bottom isn't condensing on the lid is bc the heat from the top substrate matches the heat inside the bottom tub... condensation only indicates higher temp inside than outside of the tub, and can occur even with a dry substrate... not a way to gauge RH, need to learn proper surface conditions... no biggy

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Re: Monotub temperatures on tile floor [Re: rawdog]
    #25518135 -

The reason why there is not condensation on the lid of the bottom tub is cause the heat from the substrate of the top tub is transfered onto the lid. Just like with poured petri's, let them cool down stacked and there will be little condensation.

I don't know about the design of your tubs but most tubs have little 'heels' in all four bottom corners to keep it elevated even if only a mm or two. But this is enough to insulate the heat transfer from the substrate into the colder tile floor.


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Cakes inside Water Tub with optimal Surface Conditions

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Re: Monotub temperatures on tile floor [Re: Mateja] * 1
    #25518180 -

The floor is the dirtiest part of your house. Use an empty tub to stack your FCs on.


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Pat The Bunny said:
A punk rock song won't ever change the world, but I can tell you about a couple that changed me.

bodhisatta said:
i recommend common sense and figuring it out.

These are the TEKs I use. They're all as cheap and easy as possible, just like your mom.

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Re: Monotub temperatures on tile floor [Re: 36fuckin5]
    #25518521 -

Makes sense does anyone else stack directly on top of each other? My tile floor is super clean so I doubt id get any contams from that.. was more concerned about why the monotub on floor wasnt condensating on the lid n looking like how the one on top did at the time

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Re: Monotub temperatures on tile floor [Re: rawdog]
    #25518601 -

Because of the temperature differences on the inside and outside of the lid.

One lid had similar temps on inside and outside of lid and the other lid had colder temps on outside and warmer on inside and this condensed as droplets on the inside of lid.


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Cakes inside Water Tub with optimal Surface Conditions

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Re: Monotub temperatures on tile floor [Re: rawdog]
    #25518609 -

I stack totes all the time, the bottom one is usually empty, or filled with miscellaneous shit. It keeps the subs the same temp as the ambient temp of the room. Even though your floor may be extremely clean the vast majority of contams are in the air within 12 inches of the floor, it's just better to keep your sub up off the floor, its not required but it sure doesn't hurt anything.


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Re: Monotub temperatures on tile floor [Re: Mateja]
    #25518610 -

Mateah said:
Because of the temperature differences on the inside and outside of the lid.

One lid had similar temps on inside and outside of lid and the other lid had colder temps on outside and warmer on inside and this condensed as droplets on the inside of lid.



The monotub with the condensed lid seems to be moving faster so I added cardboard between them stacked onto each other to see if it makes a difference

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Re: Monotub temperatures on tile floor [Re: rawdog]
    #25518845 -

rawdog said:
Makes sense does anyone else stack directly on top of each other? My tile floor is super clean so I doubt id get any contams from that.. was more concerned about why the monotub on floor wasnt condensating on the lid n looking like how the one on top did at the time



Your floor may be cleaned but the floor is the dirtiest place in a home as well as the air down there

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Re: Monotub temperatures on tile floor [Re: bodhisatta]
    #25518908 -

It's not the surface of the floor you should be concerned with,  but rather the 12" blanket of floating dust and contaminant spores that gravity so graciously delivers for us... short of having a whole home HEPA filtration system, and hermetic seals on all doors and windows... Still have SOME nasties to contend with... anything to get them a foot above the ground

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Re: Monotub temperatures on tile floor [Re: Caps McGee]
    #25519070 -

Cardboard didnt do shit.. i raised both of them off the floor tho

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Re: Monotub temperatures on tile floor [Re: Caps McGee]
    #25519132 -

Would a space heater on the floor cause the contaminates and spores to be circulating around the room more than the 12 inches you guys mentioned above? Have to heat the room its been in the 40s and 50s here in Wisconsin.


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Re: Monotub temperatures on tile floor [Re: Lucky 1976]
    #25519137 -

I'm watching the game outside its 54 in Milwaukee. No central air? Radiator type heaters work well. The fan forced ones really dry a room out. The radiator type you can put a pan/dish/tray of water on the top of them.

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Re: Monotub temperatures on tile floor [Re: bodhisatta]
    #25519173 -

Thank you bod, going to fleet farm to see if they have one, go brewers go packers! If not should I put a humidifier in the room or just keep my shoeboxes at the right rh?


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Re: Monotub temperatures on tile floor [Re: Lucky 1976]
    #25519202 -

Room humidity can be low all winter my room humidity is low as fuck. Nose bleeds, static shocks, etc.. but the tubs and shoeboxes do fine
They keep their own humidity. I boil pots of water or use a warm mist for my own comfort.

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Re: Monotub temperatures on tile floor [Re: bodhisatta]
    #25519383 -

Great idea forced air heat sucks so dry, I usually put water in a bread pan on the heat vent that helps though my dog like to drink it lol


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Re: Monotub temperatures on tile floor [Re: bodhisatta]
    #25519398 -

Do they keep their own temperature as well?
(as long as the outside temp are not freezing or super hot( 100+'s) ?


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Edited by chaosshadow (10/07/18 12:14 PM)

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Re: Monotub temperatures on tile floor [Re: chaosshadow]
    #25519407 -

I was stacking mine like this for a while.


at some point i had 5 stacked lol.

There will be condensation on the lids wherever the top tub inst touching it. (center area)


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Re: Monotub temperatures on tile floor [Re: chaosshadow]
    #25519429 -

Good question I was wondering that too, my first winter grow happy fruit flies are gone it was a battle with them for awhile this summer


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Re: Monotub temperatures on tile floor [Re: Lucky 1976]
    #25519432 -

Seemed to me they came from the coco core or got in my tub somehow


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