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Invisiblelone_psychonaut
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2 holes?
    #23369986 - 06/22/16 01:32 PM (7 years, 8 months ago)

I have been looking into using self healing ports for my quart grain jars with synthetic filter discs. I've read a lot of people having the injection port and one hole for gas exchange. However isn't it true that there should be two holes; one for air going in and one for air going out?


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InvisibleInocuole
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Re: 2 holes? [Re: lone_psychonaut]
    #23369989 - 06/22/16 01:34 PM (7 years, 8 months ago)

Quote:

lone_psychonaut said:
I have been looking into using self healing ports for my quart grain jars with synthetic filter discs. I've read a lot of people having the injection port and one hole for gas exchange. However isn't it true that there should be two holes; one for air going in and one for air going out?





Why couldn't one hole facilitate the in and the out exactly?  Filter discs work in both directions..  It's not like there's tubes going in the holes with a one way air flow.


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Invisiblelone_psychonaut
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Re: 2 holes? [Re: Inocuole]
    #23369999 - 06/22/16 01:41 PM (7 years, 8 months ago)

I was told that the gas can't go in and out the hole at the same time by a buddy of mine, but I didn't find any supporting claims within the forums


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InvisibleBunji Fungi
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Re: 2 holes? [Re: lone_psychonaut]
    #23370010 - 06/22/16 01:45 PM (7 years, 8 months ago)

yeah your buddy doesn't know what he's talkin about, but I say two holes are better than one! :lol:


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InvisibleInocuole
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Re: 2 holes? [Re: lone_psychonaut]
    #23370012 - 06/22/16 01:45 PM (7 years, 8 months ago)

Take this buddy of yours, tie him to your bumper, and take a sunday drive until you don't hear anymore screaming.

The hole is by and large there to prevent a vacuum forming.  Air will never need to go in and out at the same time.  It either forms a vacuum and pulls air in slowly, or produces a positive pressure and leaks out some air through the filter.  Physically, you can't have air going in and out of the same very small container without perfectly balancing the two to prevent a positive or negative pressure. 

Seems like a very complicated view of simple physics.


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Invisiblelone_psychonaut
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Re: 2 holes? [Re: Inocuole]
    #23370027 - 06/22/16 01:54 PM (7 years, 8 months ago)

lol  thanks guys, that makes sense.  I'll stick with the one hole. Also what's your guys take on the size of injector ports? I've seen some 13mm and others 20mm. Is one size better than the other?


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InvisibleInocuole
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Re: 2 holes? [Re: lone_psychonaut]
    #23370044 - 06/22/16 02:00 PM (7 years, 8 months ago)

I don't use injector ports since I feel they're a contam vector but when I did I always just did a 1/4 inch hole covered with a dab of silicone.


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Invisiblelone_psychonaut
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Re: 2 holes? [Re: Inocuole]
    #23370063 - 06/22/16 02:06 PM (7 years, 8 months ago)

I will research the silicone method, especially if that's less likely to contaminate


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Offlinespacechildo
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Re: 2 holes? [Re: lone_psychonaut]
    #23370073 - 06/22/16 02:10 PM (7 years, 8 months ago)

Quote:

Inocuole said:
I feel they're a contam vector




Quote:

lone_psychonaut said:
especially if that's less likely to contaminate




:thataintright:

just skip SHIPs all together, crack open the lid in a SAB, much more reliable and the only way you can drop agar wedges in.

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OfflineBobabouy
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Re: 2 holes? [Re: lone_psychonaut]
    #23370074 - 06/22/16 02:11 PM (7 years, 8 months ago)

https://www.sciplus.com/p/LG-BLUE-STOPPER_33795

Any of these will do. I use the blue ones.

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Invisiblelone_psychonaut
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Re: 2 holes? [Re: Bobabouy]
    #23370155 - 06/22/16 02:40 PM (7 years, 8 months ago)

Thanks for the link, any reason you chose the blue one?


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OfflineBobabouy
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Re: 2 holes? [Re: lone_psychonaut]
    #23370230 - 06/22/16 03:04 PM (7 years, 8 months ago)

I like the color.

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Invisiblelone_psychonaut
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Re: 2 holes? [Re: Bobabouy]
    #23370301 - 06/22/16 03:29 PM (7 years, 8 months ago)

Good reason...lol


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Invisiblelone_psychonaut
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Re: 2 holes? [Re: lone_psychonaut]
    #23370313 - 06/22/16 03:33 PM (7 years, 8 months ago)

I noticed there are plastic lids with a gas exchange hole and injection port already assembled; I may go that route...


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InvisibleInocuole
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Re: 2 holes? [Re: lone_psychonaut]
    #23370316 - 06/22/16 03:34 PM (7 years, 8 months ago)

If you're cool with the markup for labor then I guess it's just as well.


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Invisiblelone_psychonaut
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Re: 2 holes? [Re: Inocuole]
    #23370326 - 06/22/16 03:37 PM (7 years, 8 months ago)

How do you mean?


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Invisiblemupetmower
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Re: 2 holes? [Re: lone_psychonaut]
    #23370338 - 06/22/16 03:41 PM (7 years, 8 months ago)

they are gonna charge you a lot of extra money just for drilling a hole.


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OfflineKenetic
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Re: 2 holes? [Re: Bunji Fungi] * 1
    #23370507 - 06/22/16 04:53 PM (7 years, 8 months ago)

Quote:

Bunji Fungi said:
yeah your buddy doesn't know what he's talkin about, but I say two holes are better than one! :lol:[/quote. ]
Two holes might dry it out, ha no pun intended:crazy2:


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OfflineKenetic
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Re: 2 holes? [Re: Kenetic] * 1
    #23370509 - 06/22/16 04:54 PM (7 years, 8 months ago)

Oops I screwed up the code again


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Todo Cambia
   

               
                                                :cookiemonster::elmo:



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InvisibleInocuole
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Re: 2 holes? [Re: Kenetic]
    #23370641 - 06/22/16 05:39 PM (7 years, 8 months ago)

Lol, period and a space.


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