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OfflineWillieTomg
If stemmer votedme 1, I'm doingSOMETHING right!
Registered: 04/09/05
Posts: 425
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Last seen: 4 years, 10 months
Strange humidity issues...
    #4320063 - 06/21/05 11:39 AM (12 years, 1 month ago)

Well, my cakes have been fruiting for about a week now, and one of them is growing a beautiful set of fruitbodies. There's about six large ones, and a score of pins under them. Not much action on the other cakes yet, which leads me to my question:

I have a combonation thermometer/hygrometer in one of my two tubs. The tub without the device is the one where the cakes are pinning and fruiting, albeit a bit slowly. Over the past few days, after a heat wave, I noticed that the humidity was falling from 95-100% to around 90%. Not a big jump I know, but it's stayed that way for several days now, and I've run out of ideas why it could be happening. Just a bit of info on the tubs...

--24x12x18" w. opaque sides and clear lid.
--six ventilation holes on each long side, for a total of 12 holes all thoroughly blocked with poly-fil.
--1-1.5" of perlite (depth varies) at the bottom
--3/4" of still water below the perlite (filled it just yesterday, thought it was low water level contributing to the drop, but hasn't helped.)
--In tub with hygrometer, six cakes haven't shown signs of activity for 8 days.
--In tub without hygrometer, five cakes have shown signs ranging from only a few pins, to several large fruits.
--cakes are suspended above perlite on a layer of aluminum foil.

I thought maybe the holes were too full of poly-fil, or that the water level in the perlite was too low. But that isn't it. I'm out of ideas. Apparently, it seems that the perlite tek simply just STOPPED working, which makes no sense. I dunno. Anyone got any ideas from here?


--------------------
Battles of wits are impossible with the unarmed.


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OfflineWillieTomg
If stemmer votedme 1, I'm doingSOMETHING right!
Registered: 04/09/05
Posts: 425
Loc: On the insides of your ey...
Last seen: 4 years, 10 months
Re: Strange humidity issues... [Re: WillieTomg]
    #4320981 - 06/21/05 04:13 PM (12 years, 1 month ago)

*Just bumping this so it doesn't get buried.*


--------------------
Battles of wits are impossible with the unarmed.


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Invisiblebackupwards
peon

Registered: 04/02/05
Posts: 3,022
Loc: somewhere else
Re: Strange humidity issues... [Re: WillieTomg]
    #4321322 - 06/21/05 05:47 PM (12 years, 1 month ago)

you are going to get a higher rh if you: drain the water out of the perlite, standing water will help invite contams. you should just soak the perlite and the drain it and then put it in the chamber. see the perlite just has micropores that hold water and while they sit in water not much surface area is available for evaporation. remove the water and watch your rh climb as more surface area is available.
peace


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Invisibledeanofmean
mycophagous

Registered: 12/07/02
Posts: 2,017
Loc: PNW
Re: Strange humidity issues... [Re: WillieTomg]
    #4321370 - 06/21/05 05:59 PM (12 years, 1 month ago)

when temps get higher the air is able to absorb more h2o and could lower RH, if anything you may have too much air exchange.
try misting the walls of the terrarium, and see if that helps.


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InvisibleRoadkill
Retired Shroomery Mod
Male User Gallery

Registered: 12/11/01
Posts: 22,598
Loc: Snoqualmie, Wa.
Trusted Cultivator
Re: Strange humidity issues... [Re: WillieTomg]
    #4321495 - 06/21/05 06:36 PM (12 years, 1 month ago)

The guys gave you some good tips.

:smile:

this also could be your problem...
Quote:

--six ventilation holes on each long side, for a total of 12 holes all thoroughly blocked with poly-fil.




too many holes...

your not working with casings.

you want high humidity with cakes!~

block up those holes and your cakes will get better humidity!~

tc


--------------------
Laterz, Road

Who the hell you callin crazy?
You wouldn't know what crazy was if Charles Manson was eating froot loops on your front porch!


Brainiac said:
PM the names with on there names, that means they have mushrooms for sale.



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OfflineWillieTomg
If stemmer votedme 1, I'm doingSOMETHING right!
Registered: 04/09/05
Posts: 425
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Last seen: 4 years, 10 months
Re: Strange humidity issues... [Re: Roadkill]
    #4322480 - 06/21/05 11:11 PM (12 years, 1 month ago)

Thank you so much guys!  :hug:  It's too labor intensive to drain the perlite now, and I think the risk of contams is negligible in this case (famous last words, I know.)  But I've tried misting the walls, and blocking off the holes even more thoroughly.  I guess I'll post the results if/when I see them.

Thank you again for the ideas.


--------------------
Battles of wits are impossible with the unarmed.


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Invisiblebackupwards
peon

Registered: 04/02/05
Posts: 3,022
Loc: somewhere else
Re: Strange humidity issues... [Re: WillieTomg]
    #4322499 - 06/21/05 11:14 PM (12 years, 1 month ago)

can't think of it as being to intensive, it needs to be a labor of love. could be very easily done by setting your cakes into another container and dumping the perlite into a strainer, let it drain and then put your tub back together. it will help the humidity go up.
peace


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Invisibletahoe
Noob Slayer
Male

Registered: 11/27/03
Posts: 6,216
Loc: N38.93829W119.98108
Trusted Cultivator
Re: Strange humidity issues... [Re: Roadkill]
    #4322577 - 06/21/05 11:43 PM (12 years, 1 month ago)

Quote:

Roadkill said:


too many holes...

your not working with casings.

you want high humidity with cakes!~





So true. Cake Love Moisture, I like having water drops on my cakes, my cakes love the water.
This is a tub with 2 holes, co2 is heavy it falls out the holes

Here they are today


--------------------
Stop experimenting half way through your first grow. Grow it to maturity, watch it, learn from it. Do this a few times then experiment with different ideas and figure out what works best for you.


Teh=The

I need to proofread


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OfflineWillieTomg
If stemmer votedme 1, I'm doingSOMETHING right!
Registered: 04/09/05
Posts: 425
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Last seen: 4 years, 10 months
Re: Strange humidity issues... [Re: tahoe]
    #4323958 - 06/22/05 10:01 AM (12 years, 1 month ago)

Okay, now that I've slept a night...

Checked the tub with the fruiting cakes first today. Dear sweet Jesus in heaven it is so beautiful... I'll do my best to post pics ASAP! One of the cakes has so many pins I don't want to put my (gloved) hand in cause I'm afraid they'll just jump up and bite it right off in a desperate attempt to get more nutes for the swarms of shroomies that are popping up all over the chamber!

Then I checked the other tub, and it was at 88% RH after all I did last night. Oy. So, I'm going to try to seal off the holes with duct tape (this setup is getting more ghetto by the hour), and raise the cakes a bit more off the perlite (separate problem, found the solution myself thanks to the wonderful forum search button.) And since I seem to have come into a chunk of spare time today, I can actually strain the perlite after all. Well, if it doesn't work, at least it's given me something to do with my idle wednesdays!

Oh, and I meant it about the pics. The second I can get a good digital camera, it's mycopr0n for everybody!!!


--------------------
Battles of wits are impossible with the unarmed.


Edited by WillieTomg (06/22/05 10:02 AM)


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OfflineWillieTomg
If stemmer votedme 1, I'm doingSOMETHING right!
Registered: 04/09/05
Posts: 425
Loc: On the insides of your ey...
Last seen: 4 years, 10 months
Re: Strange humidity issues... [Re: WillieTomg]
    #4324479 - 06/22/05 01:14 PM (12 years, 1 month ago)

UPDATE!!!

Made changes on the tubs at around 11 this morning, RH was at an all time low of 82%. As of 1pm today, RH is 93%! Still not all the way, but methinks I might wind up owning some people 5 shrooms of "Thanks for saving my harvest!" sometime in the very near future.

In other words: the problem isn't solved yet, but things are looking up. Fingers crossed!


--------------------
Battles of wits are impossible with the unarmed.


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OfflineWillieTomg
If stemmer votedme 1, I'm doingSOMETHING right!
Registered: 04/09/05
Posts: 425
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Last seen: 4 years, 10 months
Re: Strange humidity issues... [Re: WillieTomg]
    #4326198 - 06/22/05 08:52 PM (12 years, 1 month ago)

Hmmm... alright, as of this evening RH has stalled at around 92-93%. Is this acceptable, or do I HAVE to reach for those extra few %? The whole point of using perlite and drilling air holes was to achieve a level of automation so I don't have to constantly mist and do gas exchange.

Oh, and since I didn't put it in my last post, the changes I made to the tubs were draining out the standing water from the perlite, and sealing off all but 3 holes in each tub with duct tape.


--------------------
Battles of wits are impossible with the unarmed.


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Invisiblebackupwards
peon

Registered: 04/02/05
Posts: 3,022
Loc: somewhere else
Re: Strange humidity issues... [Re: WillieTomg]
    #4326252 - 06/22/05 09:15 PM (12 years, 1 month ago)

sounds like you are there now man. hope it all turns out well.
peace


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OfflineWillieTomg
If stemmer votedme 1, I'm doingSOMETHING right!
Registered: 04/09/05
Posts: 425
Loc: On the insides of your ey...
Last seen: 4 years, 10 months
Re: Strange humidity issues... [Re: backupwards]
    #4328812 - 06/23/05 04:06 PM (12 years, 1 month ago)

Harvested half the shrooms off of one cake (many wern't fully grown) for a flush of around 27.5g wet! WOOO! I think this tub is going to be okay.

Still only one pin between the six cakes in the other tub. I'm debating whether I should give them another dunk/cold shock to get them going? It's been almost 10 days now. I know I need to keep waiting, and be patient, I'm just planning ahead in case worse comes to worst, and nothing happens after too long a time (2-3 weeks?) Expect the worst, pray for the best. Isn't that how the saying goes?

EDIT: Upon further forum searching, I discover that yes, I do actually have to wait my white ass up before crying about no pins. Oh well. Each tub only has 2 unsealed holes in it now, one at the top on one side, one on the bottom on the other (thought I'd get a nice air flow high-to-low thingy happening in there.) I guess all I can do is my best at this point... the rest is in God's hands now. [/dramatic]


--------------------
Battles of wits are impossible with the unarmed.


Edited by WillieTomg (06/23/05 04:13 PM)


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Invisibledeanofmean
mycophagous

Registered: 12/07/02
Posts: 2,017
Loc: PNW
Re: Strange humidity issues... [Re: WillieTomg]
    #4329230 - 06/23/05 06:17 PM (12 years, 1 month ago)

what are the temps like there now?
just curious, because you mentioned a heat wave earlier.


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OfflineWillieTomg
If stemmer votedme 1, I'm doingSOMETHING right!
Registered: 04/09/05
Posts: 425
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Last seen: 4 years, 10 months
Re: Strange humidity issues... [Re: deanofmean]
    #4331543 - 06/24/05 09:48 AM (12 years, 1 month ago)

A perfect 74 degrees both outside and in the tubs!

Oh, and I think I discovered why I was getting strange RH readings... are you ready for this?

The hygrometer is broken.

Okay, so waaaaaay back a few months ago I was in a pet shop when I see a combonation thermometer/hygrometer in the store on sale for $13. I worry briefly about quality, but I pick it up because it's just... so.. cheap! And besides, I really was trying to do this for under about $60 anyway. Well, leading theory at this point is that humidity was close to 100% (although the cheap RH sensor only maxed out at 95%, which would explain a lot) and some condensation got into it, making it malfunction by reading several percent low. For god's sakes, when I post the pics (got a camera) I'll show you how much condensation is on the walls/roof of my tubs. I practically made a mini-rainforest! I flat out refuse to believe that that's what 85% humidity looks like. Misting the walls is almost pointless, since it usually knocks off more droplets from the sides of the container than are replaced by the spray bottle! So I think I just might chalk this one up to mechanical error. Besides, the conditions haven't stopped the cakes in the other tub from fruiting like the world's ending. I think I'll just keep the perlite wet, maintain my light cycle, and see what happens in a week.

Does this ever happen to anyone else?


--------------------
Battles of wits are impossible with the unarmed.


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