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maddchef
Vaginal escape artist



Registered: 09/04/09
Posts: 5,602
Loc: Your mom's vag
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Breaking a pc vacuum
#22239085 - 09/14/15 10:47 PM (8 years, 4 months ago) |
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So my pc holds a wicked ass vacuum.
Exactly how should I be releasing pressure? Put an ISO soaked paper towel over the nipple and let it suck air in through it? Cause I tried that and either I didn't wait long enough or it wasn't able to suck any air through.
Also if I release the vacuum too quickly it inflates bags, even if they're cool 24hrs after the cycle. Any tips or tricks?
I've got sleeves in my bags but I'd rather keep them from sucking anything in if possible. Since my pc holds a vacuum can I skip the sleeves since the bags will seal on themselves?
My pc is too big to open in front of my hood so there's that fact to consider.
-------------------- In the land of the blind, the one eyed man is king. All mushrooms are edible, but some only once..... Easier than cakes I do science and shit.
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megatacular
professor procrastinate


Registered: 08/18/15
Posts: 183
Loc: Shittown Texas
Last seen: 8 years, 4 months
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Re: Breaking a pc vacuum [Re: maddchef]
#22239119 - 09/14/15 10:54 PM (8 years, 4 months ago) |
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What kinda PC holds a vaccum like that? Model make? Does it have a rocker weight or a valve? Does it have a pressure indicator? Post a pic
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maddchef
Vaginal escape artist



Registered: 09/04/09
Posts: 5,602
Loc: Your mom's vag
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AA941. No stopcock just the weight but it holds a proper vacuum. Yes it has a gauge.
If I were to just yank the weight off you can hear a rush of air into the pc for aat least 15-20 secs.
-------------------- In the land of the blind, the one eyed man is king. All mushrooms are edible, but some only once..... Easier than cakes I do science and shit.
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megatacular
professor procrastinate


Registered: 08/18/15
Posts: 183
Loc: Shittown Texas
Last seen: 8 years, 4 months
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Re: Breaking a pc vacuum [Re: maddchef]
#22239167 - 09/14/15 11:12 PM (8 years, 4 months ago) |
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I think if ur worried about contams getting in u should go sealed with the bags. Also I'd go with the iso soaked rag on the vent.pipe just after its cooled enough but hot enough to not start the vacuum
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megatacular
professor procrastinate


Registered: 08/18/15
Posts: 183
Loc: Shittown Texas
Last seen: 8 years, 4 months
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Or slowly tap the weight to purge vacuum little by little over an hrs time some people are saying on the web that works great
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megatacular
professor procrastinate


Registered: 08/18/15
Posts: 183
Loc: Shittown Texas
Last seen: 8 years, 4 months
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Re: Breaking a pc vacuum [Re: maddchef]
#22239202 - 09/14/15 11:25 PM (8 years, 4 months ago) |
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Don't.know if it will help much but check out this thread RR posted inhttp://www.shroomery.org/forums/showflat.php/Cat/0/Number/13800926
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megatacular
professor procrastinate


Registered: 08/18/15
Posts: 183
Loc: Shittown Texas
Last seen: 8 years, 4 months
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Quote:
megatacular said: Don't.know if it will help much but check out this thread RR posted in
http://www.shroomery.org/forums/showflat.php/Cat/0/Number/13800926
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elasticaltiger
Like Tigers in Coitus




Registered: 06/24/13
Posts: 8,064
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Your bags and jars are going to come into contact with open air sooner or later. Seal your bags if they are inflating.
Dont all pressure cookers suck in a little air as they cool?
-------------------- First time growing cakes? DON'T make a Shotgun Fruiting Chamber The Shmuvbox. - The Old TC's Like it Afraid to Start Growing From Your Own Prints? Drop it Like a Tiger! No Pouring. No Syringes. No Cutting. No flaming. No Contamination. No Bullshit. "The best thing to do while your waiting is to start more stuff. I usually got so much happening that I have tossed projects simply because I didn't have time for them. -Pastywhite QFT Pastywhite's Easy Agar Tek (PastyPlates) Tiger Drop Video Demos By munchauzen Van Gogh would’ve sold more than one painting if he’d put tigers in them.―Bill Watterson EZEKIEL 23:20
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maddchef
Vaginal escape artist



Registered: 09/04/09
Posts: 5,602
Loc: Your mom's vag
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Yes but my issue is mine holds a full vacuum so it doesn't gradually equalize. If I yang the weight off the bags will inflate and I'm trying to find a reliable way to slowly equalize pressure while not sucking dirty air into my bags.
If they inflate then the seal they have around the tyvek sleeves will likely be broken and they will have sucked in dirty air.
-------------------- In the land of the blind, the one eyed man is king. All mushrooms are edible, but some only once..... Easier than cakes I do science and shit.
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elasticaltiger
Like Tigers in Coitus




Registered: 06/24/13
Posts: 8,064
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Re: Breaking a pc vacuum [Re: maddchef]
#22239279 - 09/14/15 11:52 PM (8 years, 4 months ago) |
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Thats a tough one then. Is there a room where you can run a flowhood for a long time with the door closed to scrub the air and minimize contamination. Have you tried super gently lifting the weight or does the force of the air rushing in force it to lift up and completely equalize every time.
-------------------- First time growing cakes? DON'T make a Shotgun Fruiting Chamber The Shmuvbox. - The Old TC's Like it Afraid to Start Growing From Your Own Prints? Drop it Like a Tiger! No Pouring. No Syringes. No Cutting. No flaming. No Contamination. No Bullshit. "The best thing to do while your waiting is to start more stuff. I usually got so much happening that I have tossed projects simply because I didn't have time for them. -Pastywhite QFT Pastywhite's Easy Agar Tek (PastyPlates) Tiger Drop Video Demos By munchauzen Van Gogh would’ve sold more than one painting if he’d put tigers in them.―Bill Watterson EZEKIEL 23:20
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megatacular
professor procrastinate


Registered: 08/18/15
Posts: 183
Loc: Shittown Texas
Last seen: 8 years, 4 months
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Solution...= jars my man. Similar threads I've found all lead to using.jars for spawn my self have never.used bags but never.had that issue with jars. My PC I used to use was an aa but it wasn't mine. Mine is a presto with a auto vent that drops when pressure is low enough
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blindingleaf
blue collar underworld


Registered: 07/19/13
Posts: 22,008
Loc: sub-surface unseen
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do ur bags inflate even when the PC has cooled down?? mine only inflate when i break vacuum when PC is hot.
-------------------- A few thoughts on cultivation MICROBIAL HUSBANDRY!!!! The whole is greater than the sum of its parts
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midnightmaraude
Stranger


Registered: 05/09/14
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I just seal my bags. I remove all the air I can from em and then I seal the opening with gorilla duct tape. I don't understand the tyvek sleeve and it's probably a better solution I just don't know the difference
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maddchef
Vaginal escape artist



Registered: 09/04/09
Posts: 5,602
Loc: Your mom's vag
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Yes they inflate if I were to yank the weight off and equalize quickly. After 24hrs I would imagine that the temps are equal. I don't think the bags are remotely warm but maybe it's a possibility theres a degree or two diff from being such a large heat mass.
I run my 941 in a shed on a gas burner. I cannot transport the full thing to any other room.
-------------------- In the land of the blind, the one eyed man is king. All mushrooms are edible, but some only once..... Easier than cakes I do science and shit.
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megatacular
professor procrastinate


Registered: 08/18/15
Posts: 183
Loc: Shittown Texas
Last seen: 8 years, 4 months
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Re: Breaking a pc vacuum [Re: maddchef]
#22240359 - 09/15/15 09:15 AM (8 years, 4 months ago) |
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Whoa. Never on a gas burner man. Yikes!!
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filthyknees
no coincidence


Registered: 03/08/13
Posts: 6,283
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Gas burners work great. I recently got a 941 with the same issue. Even when the pc is cool to the touch it still has a vacuum. I've had the same problem. I've thought of nothing else but to pull it at the same time as my other 941 is depressurized as a relative comparison but that still makes me worry. :/ I'm just going to get the sterilizer attachment next paycheck and avoid the whole trouble.
-------------------- But if you're in a hurry, and really got to go If you're in a hurry, might have to find out slow That it's one thing to try and another to fly You get there quicker just a step at a time It's one thing to bark, another to bite The show ain't over till you pack up at night
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megatacular
professor procrastinate


Registered: 08/18/15
Posts: 183
Loc: Shittown Texas
Last seen: 8 years, 4 months
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Good idea. That's why I stay cheap I don't have that prob. And the gasnburnermjust seems sketchy to me. Idk. I'd do a big electric one.on the.counter before I'd go propane burner.
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maddchef
Vaginal escape artist



Registered: 09/04/09
Posts: 5,602
Loc: Your mom's vag
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All Americans are much heartier than your standard aluminum presto and can be run on outdoor burners. Don't try it with a Walmart pc.
The stopcock is still gonna make a vacuum my man and you're still gonna have the issue of where/how to equalize.
-------------------- In the land of the blind, the one eyed man is king. All mushrooms are edible, but some only once..... Easier than cakes I do science and shit.
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Cloudbase Jim
Stranger



Registered: 08/07/15
Posts: 46
Last seen: 8 years, 1 month
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Re: Breaking a pc vacuum [Re: maddchef]
#22240733 - 09/15/15 10:44 AM (8 years, 4 months ago) |
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You could try turning the heat on again. Once the air expands it should equalize the vacuum.
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Inocuole
Scalpel of Evil's Bane



Registered: 11/21/11
Posts: 24,863
Loc: ★
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Haven't seen a quadruple post in a while.. My AA never has this issue, I pull the weight when the gauge is 0 and it expels a little bit of air, any air it sucks in is pretty slow, but I also don't use bags.
Edited by Inocuole (09/15/15 11:05 AM)
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maddchef
Vaginal escape artist



Registered: 09/04/09
Posts: 5,602
Loc: Your mom's vag
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Re: Breaking a pc vacuum [Re: Inocuole]
#22240896 - 09/15/15 11:17 AM (8 years, 4 months ago) |
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Maybe it's cause mine is new, ionno. But that mofo holds a vacuum like a sterilizer.
-------------------- In the land of the blind, the one eyed man is king. All mushrooms are edible, but some only once..... Easier than cakes I do science and shit.
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filthyknees
no coincidence


Registered: 03/08/13
Posts: 6,283
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Re: Breaking a pc vacuum [Re: maddchef]
#22241603 - 09/15/15 02:18 PM (8 years, 4 months ago) |
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Mine with that issue was old
Good point about that vacuum remaining. Is removing it after it's been past 0 for a while is a workable solution?
Edit: found a thread about this with comments from rr here http://www.shroomery.org/forums/showflat.php/Number/13800926
-------------------- But if you're in a hurry, and really got to go If you're in a hurry, might have to find out slow That it's one thing to try and another to fly You get there quicker just a step at a time It's one thing to bark, another to bite The show ain't over till you pack up at night
Edited by filthyknees (09/15/15 02:31 PM)
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Inocuole
Scalpel of Evil's Bane



Registered: 11/21/11
Posts: 24,863
Loc: ★
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Re: Breaking a pc vacuum [Re: maddchef]
#22241635 - 09/15/15 02:27 PM (8 years, 4 months ago) |
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Quote:
maddchef said: Maybe it's cause mine is new, ionno. But that mofo holds a vacuum like a sterilizer.
How new? I got a vacuum in mine the first 2-3 times and then it stopped, but the stopping also coincided with me starting to lube the metal seal in what I believe to be the correct way.
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T-Funkadelic
Hepatitis G



Registered: 05/14/13
Posts: 11,392
Loc: 2535 W Fairmont Ave MD 21223
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Re: Breaking a pc vacuum [Re: Inocuole]
#22241677 - 09/15/15 02:39 PM (8 years, 4 months ago) |
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I think you need to slow down how fast the PC cools and don't relive the pressure. I've seen videos of people using bags and they just turn off the stove and wrap the PC in a insulation blanket and let it cool slowly so you don't cause a vacuum.
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maddchef
Vaginal escape artist



Registered: 09/04/09
Posts: 5,602
Loc: Your mom's vag
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The 941 fully loaded takes a good 18hrs to cool all that mass so its cooling slowly. I've ran it 10-15 times now and it still holds a vacuum.
I lube my seal as well.
-------------------- In the land of the blind, the one eyed man is king. All mushrooms are edible, but some only once..... Easier than cakes I do science and shit.
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T-Funkadelic
Hepatitis G



Registered: 05/14/13
Posts: 11,392
Loc: 2535 W Fairmont Ave MD 21223
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Re: Breaking a pc vacuum [Re: maddchef]
#22242079 - 09/15/15 04:35 PM (8 years, 4 months ago) |
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It could possibly be warped and the seal is not holding during expansion or contraction. Just an idea.
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maddchef
Vaginal escape artist



Registered: 09/04/09
Posts: 5,602
Loc: Your mom's vag
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It is not warped lol. It is holding a seal quite well, hence the vacuum.
-------------------- In the land of the blind, the one eyed man is king. All mushrooms are edible, but some only once..... Easier than cakes I do science and shit.
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Inocuole
Scalpel of Evil's Bane



Registered: 11/21/11
Posts: 24,863
Loc: ★
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Re: Breaking a pc vacuum [Re: maddchef]
#22242200 - 09/15/15 04:56 PM (8 years, 4 months ago) |
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Quote:
maddchef said: It is not warped lol. It is holding a seal quite well, hence the vacuum.
right? I was like "How is there a vacuum if there's no seal?"
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bodhisatta 
Smurf real estate agent


Registered: 04/30/13
Posts: 61,889
Loc: Milky way
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Quote:
megatacular said: Whoa. Never on a gas burner man. Yikes!!
if you don't know what a 941 is this may be the wrong thread for you 
sleeves or cotton stoppers in flasks is basic lab technique. lots of labs actually use AA sterilizers because autoclaves are thousands of dollars unless you shop ebay. the sterilizer should pull a vacuum
trust your filtered bags.. if you can't trust them 
http://www.shroomery.org/forums/showflat.php/Number/10748139#10748139 http://www.shroomery.org/forums/showflat.php/Number/20144809#20144809
if you want to be precautionary like pasty, he uses alcohol towel when he breaks the vacuum on his sterilizer
http://www.shroomery.org/forums/showflat.php/Number/21773441#21773441
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megatacular
professor procrastinate


Registered: 08/18/15
Posts: 183
Loc: Shittown Texas
Last seen: 8 years, 4 months
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Re: Breaking a pc vacuum [Re: bodhisatta]
#22243733 - 09/15/15 10:31 PM (8 years, 4 months ago) |
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Oh right. Assume I don't wtf a pcer is. I'm well aware of the entire line of aa's dumbshit. Who doesn't want one? Just saying. Why would you want or have to use a gas burner outside? Afraid of explosion? No room? Too big? They make electric eyes to put anywhere u want on the counter. All sizes too. Small large. Fucking huge. That's what I meant to say. Less expensive then a bottle of propane every so offen am I right? Unless u have natural gas of course.
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NDStepp84
Stellar nuclear waste


Registered: 04/23/15
Posts: 4,956
Last seen: 1 month, 3 days
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You should watch what you say and learn to use the edit function before you get yourself banned... Just saying
--------------------
"I am free, no matter what rules surround me. If I find them tolerable, I tolerate them; if I find them too obnoxious, I break them. I am free because I know that I alone am morally responsible for everything I do. -Robert A. Heinlein
Links and teks ND's grow log and discussion Plant thread
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maddchef
Vaginal escape artist



Registered: 09/04/09
Posts: 5,602
Loc: Your mom's vag
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Re: Breaking a pc vacuum [Re: NDStepp84]
#22243788 - 09/15/15 10:45 PM (8 years, 4 months ago) |
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It takes quite a long time to bring a 941 up to temp with an electric eye. Then it weighs 100lbs fully loaded. Put that on a cheap eye and you're gonna have a bad time.
You don't have to use an outdoor burner but it is much easier. I can get at least 4 runs out of a $17 bottle of propane. I'm OK with 160qts of prepped oyster spawn for $17
-------------------- In the land of the blind, the one eyed man is king. All mushrooms are edible, but some only once..... Easier than cakes I do science and shit.
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megatacular
professor procrastinate


Registered: 08/18/15
Posts: 183
Loc: Shittown Texas
Last seen: 8 years, 4 months
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Re: Breaking a pc vacuum [Re: maddchef]
#22243851 - 09/15/15 10:59 PM (8 years, 4 months ago) |
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Ah. Well then that's Quote:
maddchef said: Yes they inflate if I were to yank the weight off and equalize quickly. After 24hrs I would imagine that the temps are equal. I don't think the bags are remotely warm but maybe it's a possibility theres a degree or two diff from being such a large heat mass.
I run my 941 in a shed on a gas burner. I cannot transport the full thing to any other room.
Sorry didn't see.this. and yeah I get a little pissed when people tell me I'm stupid pretty much. And assume I have no clue.what I'm talking about. They have all kinds of ways to fix your vac problem just look harder or build your own valve with a filter on it. Easy.
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megatacular
professor procrastinate


Registered: 08/18/15
Posts: 183
Loc: Shittown Texas
Last seen: 8 years, 4 months
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A nipple with a t fitting to a nipple then ball valve and filter on top. On the side another nipple to a 90 then the original vent pipe and the pressure regulator. That way when its cool and draws that vac u can very slowly open that ball valve to suck air in through the filter.
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Juiceh
Dabbing All Day



Registered: 09/25/12
Posts: 3,208
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My 921 pulled vacuum with the stock weight. It didn't really hold overnight. When I opened it hot for agar pouring I pulled the weight off real slowly. Like this guy: Bags with tyvek sleeves in the neck should be fine if you take the weight of slow like this. If you equalized slowly and your bags are blown, it probably happened during the cook somehow I think.
Edited by Juiceh (09/16/15 01:53 AM)
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