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 Willy Wonka
Medicine Man
Registered: 12/14/11
Posts: 2,109
Loc: The Other Side 
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 The Black Tape at the Bottom of the Tub? 
#21890122 - 07/02/15 09:15 PM (8 years, 9 months ago) |
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What is the point of the black tape at the bottom of a mono tub? I've read time and time again that if humidity and fresh air exchange is better on the sides (even with trash bags or tape on the side) then this will cause side pinning. I also have followed TranscendingLife's Teks for a bit. He wraps the bottom of his tubs in Gorilla Tape, as have I for awhile now. I would assume that he does so because he is trying to keep the light from hitting the sides and to prevent side pinning. I recently started a tub without tape and I am loving the way I can see the colonization on the sides of the tub. I can also see that although the top of the tub looks fully colonized the sides have not yet reached full colonization.
Do you think that the tape on the sides helps prevent side pinning? Maybe when people tape the sides of a tub, or use a trash bag, they don't see that the sides have not yet fully colonized? Because of this they see the top fully colonized then shift the tub into fruiting and this might lead to a higher contamination rate?
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 nooberst
Stranger
Registered: 03/03/15
Posts: 459
Last seen: 7 months, 23 days
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 Re: The Black Tape at the Bottom of the Tub? [Re: Willy Wonka]
#21890186 - 07/02/15 09:31 PM (8 years, 9 months ago) |
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Dont quote me on this but I think I once heard a TC say that the reason for side pinning was the micro climate on the sides is better then on top
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Willy Wonka
Medicine Man
Registered: 12/14/11
Posts: 2,109
Loc: The Other Side
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Re: The Black Tape at the Bottom of the Tub? [Re: nooberst]
#21890246 - 07/02/15 09:42 PM (8 years, 9 months ago) |
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That is what I am saying. So if the micro climate is better on the sides and this causes the side pinning, why do we need to tape the sides? I can see that the top of my tub is fully colonized right now, but some parts on the sides have not yet fully colonized. I feel like if I throw it in to fruiting then the sides which are not yet fully colonized might cause the tub to contaminate.
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azur
God of Fuck
Registered: 04/21/12
Posts: 28,103
Loc: Daid
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Re: The Black Tape at the Bottom of the Tub? [Re: Willy Wonka]
#21890386 - 07/02/15 10:16 PM (8 years, 9 months ago) |
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Tape was an old myth. I actually have some old tubs that i spray painted the bottom before i knew better.
Clear with no liner is the way to go.
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Cue
Stranger
Registered: 01/10/08
Posts: 131
Last seen: 7 years, 8 months
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Re: The Black Tape at the Bottom of the Tub? [Re: azur]
#21891874 - 07/03/15 09:29 AM (8 years, 9 months ago) |
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i'll second the clear with no liner. My first bulk tray (mono tub sized tote in a greenhouse) had no liner or tape. I had no side pinning. The only reason I could imagine using a liner would be helpful is for ease of cleaning the tote/tray for the next round. I am doing a comparison at the moment, liner vs no liner
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azur
God of Fuck
Registered: 04/21/12
Posts: 28,103
Loc: Daid
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Re: The Black Tape at the Bottom of the Tub? [Re: Cue]
#21892166 - 07/03/15 11:13 AM (8 years, 9 months ago) |
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Yea. I think liners do probably make it easier clean up. But fuck liners. If you build you sub properly, you won't get side pins
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Mad Season
hookers and blackjack
Registered: 09/16/12
Posts: 12,666
Loc: Canada 
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Re: The Black Tape at the Bottom of the Tub? [Re: azur]
#21892260 - 07/03/15 11:39 AM (8 years, 9 months ago) |
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Lol you too azur? Yeah I don't use tape or liners either. Proper hydration during spawning, casings or misting will keep surface humidity really high and initiate pinning on the surface. Side pins happen because they have a 99% surface humidity in the sides and not on the surface. If you don't want side pins, just get a 99% surface humidity along the top.
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GreenRabbit
Plutonium Pollinator
Registered: 04/28/13
Posts: 2,667
Loc: In a forest
Last seen: 2 years, 6 months
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Re: The Black Tape at the Bottom of the Tub? [Re: Mad Season]
#21892268 - 07/03/15 11:41 AM (8 years, 9 months ago) |
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So your substrates don't shrink at all? That's usually why there are such good pinning conditions on the sides; the substrate shrinks and leaves that pocket on all sides.
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azur
God of Fuck
Registered: 04/21/12
Posts: 28,103
Loc: Daid
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Re: The Black Tape at the Bottom of the Tub? [Re: Mad Season]
#21892277 - 07/03/15 11:43 AM (8 years, 9 months ago) |
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Quote:
Mad Season said:
Lol you too azur? Yeah I don't use tape or liners either. Proper hydration during spawning, casings or misting will keep surface humidity really high and initiate pinning on the surface. Side pins happen because they have a 99% surface humidity in the sides and not on the surface. If you don't want side pins, just get a 99% surface humidity along the top.
Man. Wtf? We're like brothers or something! No liners. Lc's. Hpoo. Hookers?
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Mad Season
hookers and blackjack
Registered: 09/16/12
Posts: 12,666
Loc: Canada
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Re: The Black Tape at the Bottom of the Tub? [Re: azur]
#21892315 - 07/03/15 11:56 AM (8 years, 9 months ago) |
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Haha hell yeah azur. I can't believe how similar we do things. Even pasteurize in jars.
Green rabbit they shrink all the time. You've just gotta keep the surface at 99% humidity. If you're misting it takes an art to make it neither too wet nor too dry. There's a serious fine line between the 2.
RR would use crumpled up wax paper to give a high surface humidity. Me personally I just mostly do casings. It is a really simple thing to add, and really makes misting way more lenient. Really hard to over mist a casing. However a properly made mono wouldn't need a casing, liner or misting because it will maintain a high surface humidity regardless. Very set and forget
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Kizzle
Misanthrope
Registered: 08/30/11
Posts: 9,866
Last seen: 1 month, 8 days
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Re: The Black Tape at the Bottom of the Tub? [Re: Mad Season]
#21892695 - 07/03/15 01:35 PM (8 years, 9 months ago) |
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Making the bottom of the container opaque won't prevent side pinning but it does seem to prevent bottom pinning.
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PutACapInHisAss
Stranger Than Fiction
Registered: 08/11/07
Posts: 252
Loc: Earth
Last seen: 6 years, 6 months
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Re: The Black Tape at the Bottom of the Tub? [Re: azur]
#21892914 - 07/03/15 02:32 PM (8 years, 9 months ago) |
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Quote:
azur said:
Clear with no liner is the way to go.
You are very convincing! I don't like to waste plastic--many people don't have any idea what a problem it is becoming in the environment. This is also why I will use jars with re-usable filter disks instead of bags.
Also, it seems to me that there is the possibility of water pooling under a liner and contaminating. If there is no liner, it can be absorbed by the sub.
Plastic is very porous though. You have used and re-used tubs? I've wondered about contaminants hiding in the pores of the plastic over time. It wouldn't be too hard to pasteurize a tub though.
And, we can also have a better idea of the timing of full colonization if we can see the outside 360 degrees.
In another thread I saw it posted to get the sub top flat and even as possible for even humidification which supposedly also helps prevent side pinning.
Have you ever had a problem with your tubs bowing when moved and making the surface uneven? I seem to remember seeing this the last time I grew. I suppose the solution would be to not move them until fully consolidated or reinforce the bottoms of the tubs somehow.
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Mad Season
hookers and blackjack
Registered: 09/16/12
Posts: 12,666
Loc: Canada
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Re: The Black Tape at the Bottom of the Tub? [Re: PutACapInHisAss]
#21892946 - 07/03/15 02:39 PM (8 years, 9 months ago) |
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A slight taper from moving the tub won't do anything. It's those damn peaks and valleys all over the place.
I basically cut down massively on my waste too  the only things I use that are wasteful are sterile disposable gloves, paper towel and tinfoil. As for the contamination, you should be spawning in open air.. if everything was done right, contamination spores in the chamber won't do anything. I haven't actually cleaned a tub in a long LONG time. Just use water and rinse.
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Kizzle
Misanthrope
Registered: 08/30/11
Posts: 9,866
Last seen: 1 month, 8 days
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Re: The Black Tape at the Bottom of the Tub? [Re: PutACapInHisAss]
#21892962 - 07/03/15 02:42 PM (8 years, 9 months ago) |
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Quote:
Plastic is very porous though.
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Kizzle
Misanthrope
Registered: 08/30/11
Posts: 9,866
Last seen: 1 month, 8 days
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Re: The Black Tape at the Bottom of the Tub? [Re: Kizzle] 1
#21893011 - 07/03/15 02:51 PM (8 years, 9 months ago) |
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https://www.osha.gov/Publications/OSHA_FS-3713.pdf
Non-porous materials (e.g., metal, glass, hard
plastics, etc.) can be dried out, fully cleaned and
reused. Clean hard and non-porous materials
using a detergent. Surfaces can be rinsed with a
disinfectant made of ½ cup liquid household bleach
mixed into one gallon of water (Caution: DO NOT
mix bleach with cleaning products that contain
ammonia).
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PutACapInHisAss
Stranger Than Fiction
Registered: 08/11/07
Posts: 252
Loc: Earth
Last seen: 6 years, 6 months
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Re: The Black Tape at the Bottom of the Tub? [Re: Kizzle]
#21893084 - 07/03/15 03:05 PM (8 years, 9 months ago) |
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Thanks, that makes a lot of sense. I don't like bleach but I suppose it has its place/uses.
Porosity is relative. Plastic is way more porous than glass in general (and some other materials like metal).
Some plastics are more porous than others and nearly all plastics become more porous with time--natural break down, scraping (as it is not hard), etc.
Oh, and thanks for your contamination thread Kizzle. I just read that a couple days ago
Quote:
Kizzle said:
https://www.osha.gov/Publications/OSHA_FS-3713.pdf
Non-porous materials (e.g., metal, glass, hard
plastics, etc.) can be dried out, fully cleaned and
reused. Clean hard and non-porous materials
using a detergent. Surfaces can be rinsed with a
disinfectant made of ½ cup liquid household bleach
mixed into one gallon of water (Caution: DO NOT
mix bleach with cleaning products that contain
ammonia).
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Kizzle
Misanthrope
Registered: 08/30/11
Posts: 9,866
Last seen: 1 month, 8 days
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Re: The Black Tape at the Bottom of the Tub? [Re: PutACapInHisAss]
#21893104 - 07/03/15 03:10 PM (8 years, 9 months ago) |
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I think one mistake people make is not using the detergent. Little bits of dust and dirt ARE pourous. So simply soaking a container bleach and water is no substitute for washing it out good with soap.
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