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Offlinexbrutalx233
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Registered: 09/10/08
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Re: Polyfil instead of Tyvek for jar GE? [Re: galadar]
    #9569399 - 01/08/09 07:23 AM (15 years, 2 months ago)

Is there a reason you don't want to use micropore only? that's what I do.


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Offlinejadels215


Registered: 06/20/08
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Re: Polyfil instead of Tyvek for jar GE? [Re: galadar]
    #9569588 - 01/08/09 08:31 AM (15 years, 2 months ago)

i used polyfil on my brf jars

i forgot to create an inoculation port so i just injected through the polyfil.

they're at day 11 now. 50% colonized and no contams

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OfflineHybridprX
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Re: Polyfil instead of Tyvek for jar GE? [Re: galadar]
    #9569980 - 01/08/09 10:22 AM (15 years, 2 months ago)



Works fine for me too


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Invisibletahoe
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Re: Polyfil instead of Tyvek for jar GE? [Re: tokingnome]
    #9571465 - 01/08/09 02:52 PM (15 years, 2 months ago)

Quote:

tokingnome said:
I have a LOT of polyfil atm and no tyvek so I was wondering if I could just spread some polyfil over the GE holes on my lids and tape some micropore tape over that?



Stuff it instead. You will get a tighter fit and a better seal

Quote:

tokingnome said:
Would this work as well as tyvek?



Polyfill works better than tyvek

Here is one reason why it is better. Lets say you made 2 grain jars, one with polyfill stuffed in a 1/2 inch hole and one with a tyvek lid/disc. If you took both jars during colonization and flipped them upside down and had substrate lying on the tyvek/polyfill. The tyvek jar will most likely contam. The nutrient rich grain will slightly wetten[is that a word?] both filter membranes. The tyvek being thinner has a much greater chance of drawing in contams once it gets wet. The polyfill since it will be about an 1/2inch of filter until it reaches the outside will have to draw in contams.
This is the same reason why tyvek is a no go with lc's.
Now polyfill is a pain in the ass to stuff into a hole. The tyvek is much easier to use than polyfill.


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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.


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Offlinetokingnome
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Re: Polyfil instead of Tyvek for jar GE? [Re: tahoe]
    #9571746 - 01/08/09 03:48 PM (15 years, 2 months ago)

Quote:

tahoe said:
Quote:

tokingnome said:
I have a LOT of polyfil atm and no tyvek so I was wondering if I could just spread some polyfil over the GE holes on my lids and tape some micropore tape over that?



Stuff it instead. You will get a tighter fit and a better seal

Quote:

tokingnome said:
Would this work as well as tyvek?



Polyfill works better than tyvek

Here is one reason why it is better. Lets say you made 2 grain jars, one with polyfill stuffed in a 1/2 inch hole and one with a tyvek lid/disc. If you took both jars during colonization and flipped them upside down and had substrate lying on the tyvek/polyfill. The tyvek jar will most likely contam. The nutrient rich grain will slightly wetten[is that a word?] both filter membranes. The tyvek being thinner has a much greater chance of drawing in contams once it gets wet. The polyfill since it will be about an 1/2inch of filter until it reaches the outside will have to draw in contams.
This is the same reason why tyvek is a no go with lc's.
Now polyfill is a pain in the ass to stuff into a hole. The tyvek is much easier to use than polyfill.




Oooh that makes sense. I always wondered what was the big difference between the two when it came to using them as contam barriers. I thought about pressing the polyfil over the hole then taping that down with micropore because that would help keep the grains from touching any polyfil; however I see where you're coming from with the seal, probably wouldn't be very good. Thanks for the info!

Well I have all of my jars stuffed with polyfil (3/8 in holes) and will be PC'ing them here in a few hours then innoculating them tonight. Wish me luck! I got some pics so I'll start a grow long once I see some mycelium growth.


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Confucius say, "Man who go to bed with itchy butt, wake up with stinky finger." :strokebeard2:

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