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Teknos
keyboardcriminal


Registered: 05/01/03
Posts: 70
Last seen: 16 years, 10 months
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Questions about AA
#5477289 - 04/03/06 11:29 PM (17 years, 9 months ago) |
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Ok so I just bought this used AA off ebay. It arrived today and I have a few questions. First should the gauge be tilted like that?? And second, the guage doesnt sit at zero. Should i compensate for that and bring it to a pressure reading higher than 15psi?

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Teknos
keyboardcriminal


Registered: 05/01/03
Posts: 70
Last seen: 16 years, 10 months
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Re: Questions about AA [Re: Teknos]
#5477572 - 04/04/06 12:35 AM (17 years, 9 months ago) |
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just reached 5 psi... any input would be greaty appreciated =)
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scatmanrav
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Registered: 05/08/04
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Re: Questions about AA [Re: Teknos]
#5477592 - 04/04/06 12:40 AM (17 years, 9 months ago) |
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No worries mate, both of those are normal..bring it to 15, but higher is always better, to a point of course. I'd bet that thing could run 18 nice and fine, and that would make sure everythings done right for sterilization.
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Teknos
keyboardcriminal


Registered: 05/01/03
Posts: 70
Last seen: 16 years, 10 months
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Re: Questions about AA [Re: scatmanrav]
#5477609 - 04/04/06 12:44 AM (17 years, 9 months ago) |
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yay a response thank you! just passed 15 psi.. gonna lower the heat and try to steady the temp
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Teknos
keyboardcriminal


Registered: 05/01/03
Posts: 70
Last seen: 16 years, 10 months
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Re: Questions about AA [Re: Teknos]
#5477725 - 04/04/06 01:23 AM (17 years, 9 months ago) |
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if this thing isnt venting any steam, do i need to keep the heat on? how long will it keep the pressure for? and is it possible to leave jars in there too long?
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cappa
Nerd
Registered: 02/12/06
Posts: 854
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Re: Questions about AA [Re: Teknos]
#5477748 - 04/04/06 01:31 AM (17 years, 9 months ago) |
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You should have a weight or a toggle valve regulator.
You are supposed to put heat to the unit while it has some water in it. Let it heat up until some steam escapes for a few minutes. Then put the weight on or 'toggle' the toggle vavle(I think).
Then it starts to build up pressure.
-------------------- Their are 10 types of people. Those that understand binary, and those who don't. ~Cappa.
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scatmanrav
Brainy Smurf

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Re: Questions about AA [Re: cappa]
#5477774 - 04/04/06 01:40 AM (17 years, 9 months ago) |
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You should not have a weight, there should be no steam escaping at this point, now that your up to 15 PSI. If the toggle valve is up, steam will come up. AA's are great in they dont really lose steam like weighted PCs..you can cook the jars for 2-3 hours with no issues..after 6, I'd start worring... I've fallen asleep a few times..after 6 hours, still used the jars..8 hours in another PC though they were toast (as was the PC). BE SAFE WITH THE PC!
Keep the heat pretty low, it doesn take much, just keep the pressure even, and once the time is up, remove it from heat and allow it to cool itself..then remove the jars while warm (after pressure is back down to 1-2PSI) and shake them, then allow them to cool at room temperature for a good amount of time. Then shake well again after they have cooled down and they are ready to inoculate.
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agar
old hand


Registered: 11/21/04
Posts: 9,056
Loc: Somewhere Else
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Re: Questions about AA [Re: Teknos]
#5477791 - 04/04/06 01:46 AM (17 years, 9 months ago) |
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That gauge is 40 years old.
Take it OFF.
Spray a little WD40 in the hole, on it.
Take it to any decent auto garage & test it on an air compressor.
If it is way off base. Get another gauge. (think good hardware store)
Better to replace a gauge, than an arm , head , and/or kitchen ceiling or wall.
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IGnosticAbhorI
Stranger-er

Registered: 11/06/04
Posts: 4,899
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Re: Questions about AA [Re: agar]
#5477941 - 04/04/06 03:35 AM (17 years, 9 months ago) |
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Better to replace a gauge, than an arm , head , and/or kitchen ceiling or wall.

I'd get it all worked out as Agar says, otherwise, ya might end up missing a limp or so...:P
Take care man. Those things are GREAT.
Gl
-Gnostic
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FooMan



Registered: 02/02/05
Posts: 8,957
Loc: Earth
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Re: Questions about AA [Re: scatmanrav]
#5477993 - 04/04/06 04:38 AM (17 years, 9 months ago) |
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Quote:
scatmanrav said: You should not have a weight, there should be no steam escaping at this point, now that your up to 15 PSI. If the toggle valve is up, steam will come up. AA's are great in they dont really lose steam like weighted PCs
Newer AA pressure cookers are weighted. AA sterilizers aren't (toggle valve(s)). Just wanted to clarify that for those who purchased a newer AA pressure cooker and wonder why they do notice some steam escaping.
--------------------
Quick WBS Prep
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agar
old hand


Registered: 11/21/04
Posts: 9,056
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Re: Questions about AA [Re: FooMan]
#5478057 - 04/04/06 05:38 AM (17 years, 9 months ago) |
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Quote:
FooManShroom said:
Quote:
scatmanrav said: You should not have a weight, there should be no steam escaping at this point, now that your up to 15 PSI. If the toggle valve is up, steam will come up. AA's are great in they dont really lose steam like weighted PCs
Newer AA pressure cookers are weighted. AA sterilizers aren't (toggle valve(s)). Just wanted to clarify that for those who purchased a newer AA pressure cooker and wonder why they do notice some steam escaping.
I'm not going to take the time to research the dates.
From day one, ALL AA's (PC's & Sterilizers) had the toggle relief valve. The PC's & sterilizers both.
Some time in the mid 1980's (or there-abouts).
The consumer protection agency passed law/regulation that all PC's have at least 2 (two) steam pressure relief safety systems on them.
AA's don't have a rubber lid gasket. They have a metal to metal seal.
Any PC with a weight (Mirro-Presto, etc), cannot continue to built pressure & even if the weight was jammed down tight down, as the rubber pop off plug would blow out around 28 or 30 psi(if they have one). And/or the RUBBER LID GASKET would blow out around 28 or 30 psi. Or both.
All of that would happen, long before the PC could build enough pressure to become a pressure vessel metal shrapnel BOMB.
So, the weight is considered a safety factor. The rubber seal is considered another safety factor And, if it has one, the rubber blow out plug is another.
Because the AA had no rubber lid gasket. AA began installing a rubber blow out plug. So they would have two safety mechanisms.
Then, as a cost cutting measure. (weight costs far less to manufacture, than the toggle valve)
AA began installing the weight system on all PC's. But, retain the toggles on the sterilizers.
If any of that makes sense?
All in all, AA's are the best, bar none.
--------------------
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rDr4g0n
Young Hand

Registered: 01/17/06
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Re: Questions about AA [Re: agar]
#5499977 - 04/10/06 02:03 PM (17 years, 9 months ago) |
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instead of a rubber plug, on mine there is a metal plug with a hole in it.... why is that?
-------------------- i can speel... im just too lazy to sppelcheck. My first trip (good read) - Speed Leaching Poo! - My Second Trip (with art)
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