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cryptowizard
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Price Difference from a 99.97% to 99.99% HEPA Filter Worth It?
#26411800 - 01/02/20 02:37 AM (4 years, 1 month ago) |
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I've had one of Stament's flow hoods sitting around for a while bought as a package deal. The filter was bad, and I'm buying a new one. I have these 2 options:
I read the difference is about 1 in 20 plates will get contaminated. I also see commercial growers using these 2'x4' filters that don't have the right depth and therefor proper flow and they get along fine.
This filter will probably last 10+ years so is it worth the extra $120? Also is the 36x24 vs. 24x36 relate to the orientation of the pleats? I know they're supposed to be vertical to prevent sagging over time.
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cli_hlt
Beshroomed



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Re: Price Difference from a 99.97% to 99.99% HEPA Filter Worth It? [Re: cryptowizard]
#26411819 - 01/02/20 03:01 AM (4 years, 1 month ago) |
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If my livelyhood would depend on it, or if I'd need it for the hobby I love, I'd choose the better. The difference would be negligible in terms of cost ($120 over 10 years is nothing).
I'd use the better one because I hate constantly second guessing my equipment. With the better one the contams are almost entirely because of mistakes. This way I'd have no room for playing mind tricks on myself like "oh, it must have been a stray germ". No. I screwed up.
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Diego


Registered: 12/30/19
Posts: 346
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Re: Price Difference from a 99.97% to 99.99% HEPA Filter Worth It? [Re: cryptowizard]
#26411897 - 01/02/20 05:34 AM (4 years, 1 month ago) |
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Its worth it but not at that price. You can find cheaper ones. If you do get one from them i suggest the mini pleats
-------------------- Some do it for the income But we do it for the outcome Some of us are active While others just let their mouths run - Chali 2na & Jurassic 5
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cryptowizard
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Re: Price Difference from a 99.97% to 99.99% HEPA Filter Worth It? [Re: Diego]
#26412383 - 01/02/20 11:35 AM (4 years, 1 month ago) |
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Cepa Test came back with:
Quote:
24x36x5.875. 99.99% in an aluminum frame with a downstream gasket our part# CE24366-01 $333 each plus packaging and freight
That's gotta be over $400 with freight. Staments has it for $350, but the basic quote for shipping is $80. So it looks like Ebay is my best bet with the 30+ day waiting period.
I'm leaning towards the .99, but $400 - fuck. It's for hobby use, and my current 12x24 is a PITA to work with and ~10 years old. Plus all my plates are getting bacterial contams, so I think it has pinhole leaks unless it's coming from the spore solution.
There are cheaper filters out there, but I already have the cabinet and blower. It also has a properly sized air space behind the filter matched to the blower to get proper laminar flow.
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verum subsequentis
seeker of truth



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Re: Price Difference from a 99.97% to 99.99% HEPA Filter Worth It? [Re: cryptowizard] 1
#26412468 - 01/02/20 12:42 PM (4 years, 1 month ago) |
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I think the bacteria problem isn't coming from the hood. It's probably from you or you're spores.
I'd definitely advise getting the nicer filter. The amount of money isn't even worth worrying about when you put it into the perspective of the life of the filter.
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spiritlands



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Re: Price Difference from a 99.97% to 99.99% HEPA Filter Worth It? [Re: verum subsequentis]
#26412573 - 01/02/20 01:49 PM (4 years, 1 month ago) |
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My shmuvbox was $40 and the filters for it are .2 microns and they're $20. I know you guys have nice flow hoods and those filters are prob nice but those prices are why I like my trashbag box. Someday when I have room for a permanent fh I'd like to build a setup like that. Why is the 12x24 a pita, not wide enough? That's the size of my shmuv but with mine it blows from left to right and I have the width of the trash bag to work in.
  This Place has a lot of filters for flow hoods. I don't know much about the filters but they have a huge selection. Idk if that helps any.
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A.k.a
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Re: Price Difference from a 99.97% to 99.99% HEPA Filter Worth It? [Re: spiritlands] 2
#26412583 - 01/02/20 01:55 PM (4 years, 1 month ago) |
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I don’t know shit about filters but another 120 bucks for .02% my first thought was hell no...then I saw they last a decade.
That’s a tough call, 5% contamination rate isn’t much but if you think of it as 12 bucks a year for zero plates lost I think everybody would go for it.
I’d say it depends how much you’ll use it but if you’re buying a hood in the first place you’re deep enough into cult to make it worth the extra money.
Reminds me of those starving kid commercials.
“For just one dollar a month you could save one plate from every sleeve from ending up in the garbage before it’s time.”
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LAGM2020     
Edited by A.k.a (01/02/20 01:57 PM)
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Diego


Registered: 12/30/19
Posts: 346
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Re: Price Difference from a 99.97% to 99.99% HEPA Filter Worth It? [Re: A.k.a]
#26412596 - 01/02/20 01:59 PM (4 years, 1 month ago) |
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You can find camfil h14s for $100. 22 in by 43 in
-------------------- Some do it for the income But we do it for the outcome Some of us are active While others just let their mouths run - Chali 2na & Jurassic 5
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Diego


Registered: 12/30/19
Posts: 346
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Re: Price Difference from a 99.97% to 99.99% HEPA Filter Worth It? [Re: Diego]
#26412604 - 01/02/20 02:01 PM (4 years, 1 month ago) |
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They're 99.995% and are only 2 inches thick
-------------------- Some do it for the income But we do it for the outcome Some of us are active While others just let their mouths run - Chali 2na & Jurassic 5
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Growtech
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Re: Price Difference from a 99.97% to 99.99% HEPA Filter Worth It? [Re: Diego]
#26412813 - 01/02/20 03:45 PM (4 years, 1 month ago) |
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I'd go with a 99.99% filter. I also would be wary of one that is 2 inches thick. Not necessarily because it couldn't filter properly, but you are going to have a hard time achieving laminar flow the thinner the filter is. A filter that isn't conducive to laminar flow isn't going to be great if it's causing turbulence that is sucking non-sterile air into your work area.
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Diego


Registered: 12/30/19
Posts: 346
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Re: Price Difference from a 99.97% to 99.99% HEPA Filter Worth It? [Re: Growtech]
#26412835 - 01/02/20 03:59 PM (4 years, 1 month ago) |
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Quote:
Growtech said: I'd go with a 99.99% filter. I also would be wary of one that is 2 inches thick. Not necessarily because it couldn't filter properly, but you are going to have a hard time achieving laminar flow the thinner the filter is. A filter that isn't conducive to laminar flow isn't going to be great if it's causing turbulence that is sucking non-sterile air into your work area.
They're built specifically for it. Use the correct fan size
-------------------- Some do it for the income But we do it for the outcome Some of us are active While others just let their mouths run - Chali 2na & Jurassic 5
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Diego


Registered: 12/30/19
Posts: 346
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Re: Price Difference from a 99.97% to 99.99% HEPA Filter Worth It? [Re: Diego]
#26412848 - 01/02/20 04:08 PM (4 years, 1 month ago) |
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-------------------- Some do it for the income But we do it for the outcome Some of us are active While others just let their mouths run - Chali 2na & Jurassic 5
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cryptowizard
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Re: Price Difference from a 99.97% to 99.99% HEPA Filter Worth It? [Re: verum subsequentis]
#26412956 - 01/02/20 05:37 PM (4 years, 1 month ago) |
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Quote:
verum subsequentis said: I think the bacteria problem isn't coming from the hood. It's probably from you or you're spores.
I'd definitely advise getting the nicer filter. The amount of money isn't even worth worrying about when you put it into the perspective of the life of the filter.
I suspect you're correct. I'm getting exactly the same result from 3 separate strains/syringes. They all come out like this:

It's not a well known supplier out of Vegas. I suppose they could have a process problem or a filthy fruiting room. I don't think it's my technique, that's pretty solid from everything I've watched/read. I'm sterilizing between each transfer in a electric tool sterilizer - needle and loop, hands behind the work, opening into the airflow, and so on. I've done pour/no-pour 30min in the 25x. Nothing's worked.
I've made over 30 plates and they all pretty much turn out the same. Stall out after 4 days and the shiny/slimy appearance covers the myc. Rest of the plate stays clean. My next move is to get some Antibiotic MEA and perhaps a new syringe from a different supplier. Start over for the 3rd time. . . .
Loved reading some of your posts BTW. I think I'll order the .99 tomorrow.
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Mr. Alien
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Re: Price Difference from a 99.97% to 99.99% HEPA Filter Worth It? [Re: cryptowizard]
#26412975 - 01/02/20 05:45 PM (4 years, 1 month ago) |
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I will buy my next filter in www.cepatest.com as well.
Yeah go for the 99.99%, of course!
Also, they are custom made. John Hollidays recommended me that site as well. I'll say go for it!
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Growtech
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Re: Price Difference from a 99.97% to 99.99% HEPA Filter Worth It? [Re: cryptowizard]
#26413260 - 01/02/20 08:52 PM (4 years, 1 month ago) |
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Quote:
cryptowizard said:
Quote:
verum subsequentis said: I think the bacteria problem isn't coming from the hood. It's probably from you or you're spores.
I'd definitely advise getting the nicer filter. The amount of money isn't even worth worrying about when you put it into the perspective of the life of the filter.
I suspect you're correct. I'm getting exactly the same result from 3 separate strains/syringes. They all come out like this:

It's not a well known supplier out of Vegas. I suppose they could have a process problem or a filthy fruiting room. I don't think it's my technique, that's pretty solid from everything I've watched/read. I'm sterilizing between each transfer in a electric tool sterilizer - needle and loop, hands behind the work, opening into the airflow, and so on. I've done pour/no-pour 30min in the 25x. Nothing's worked.
I've made over 30 plates and they all pretty much turn out the same. Stall out after 4 days and the shiny/slimy appearance covers the myc. Rest of the plate stays clean. My next move is to get some Antibiotic MEA and perhaps a new syringe from a different supplier. Start over for the 3rd time. . . .
Loved reading some of your posts BTW. I think I'll order the .99 tomorrow.
That's pretty normal for spore syringes. Spore syringes are inherently not sterile. Let them sit a little bit, germinate some mycelium, and transfer some away from the bacteria.
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verum subsequentis
seeker of truth



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Re: Price Difference from a 99.97% to 99.99% HEPA Filter Worth It? [Re: Growtech]
#26413307 - 01/02/20 09:20 PM (4 years, 1 month ago) |
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That is 100% coming from the syringe. Dirty as fuck. you may be able to save it but it's quite hard when they are that fucked.
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cryptowizard
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Re: Price Difference from a 99.97% to 99.99% HEPA Filter Worth It? [Re: verum subsequentis]
#26413375 - 01/02/20 09:57 PM (4 years, 1 month ago) |
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Good to know. Thank you. I ordered some Antibiotic MEA, but it sounds like I need to get spores from another source.
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Growtech
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Re: Price Difference from a 99.97% to 99.99% HEPA Filter Worth It? [Re: cryptowizard]
#26413433 - 01/02/20 10:59 PM (4 years, 1 month ago) |
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Quote:
cryptowizard said: Good to know. Thank you. I ordered some Antibiotic MEA, but it sounds like I need to get spores from another source.
Even the best vendors are going to have contamination in syringes more often than not. One of the main reasons to do agar is to do transfers and get contamination free mycelium ready for colonization.
Just assume every spore syringe and spore print is contaminated.
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Mushr00mSurprise
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Re: Price Difference from a 99.97% to 99.99% HEPA Filter Worth It? [Re: Growtech]
#26413460 - 01/02/20 11:31 PM (4 years, 1 month ago) |
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Quote:
Growtech said:
Quote:
cryptowizard said: Good to know. Thank you. I ordered some Antibiotic MEA, but it sounds like I need to get spores from another source.
Even the best vendors are going to have contamination in syringes more often than not. One of the main reasons to do agar is to do transfers and get contamination free mycelium ready for colonization.
Just assume every spore syringe and spore print is contaminated.
I get my spores from a reliable source and they still have contaminates every once and a while.
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Kizzle
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Re: Price Difference from a 99.97% to 99.99% HEPA Filter Worth It? [Re: Mushr00mSurprise]
#26413485 - 01/02/20 11:56 PM (4 years, 1 month ago) |
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The antibiotic agar could make all the difference or it could do nothing. Hell it may not even be bacteria, yeasts look pretty similar. It can also help sometimes to use an agar with less added sugars. The mycelium growth is weaker and harder to see but it seems to give it more of an advantage over the bacteria.
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