Home | Community | Message Board

Original Seeds Store
This site includes paid links. Please support our sponsors.


Welcome to the Shroomery Message Board! You are experiencing a small sample of what the site has to offer. Please login or register to post messages and view our exclusive members-only content. You'll gain access to additional forums, file attachments, board customizations, encrypted private messages, and much more!

Shop: North Spore Bulk Substrate, Injection Grain Bag   MagicBag.co All-In-One Bags That Don't Suck, Certified Organic All-In-One Grow Bags   PhytoExtractum Buy Bali Kratom Powder, Maeng Da Thai Kratom Leaf Powder

Jump to first unread post Pages: < First | < Back | 1663 | 1664 | 1665 | 1666 | 1667 | 1668 | 1669 | 1670 | 1671 | 1672 | 1673 | 1674 | 1675 | 1676 | 1677 | 1678 | 1679 | 1680 | 1681 | 1682 | 1683 | Next > | Last >
Invisiblegizmo1
Other User Gallery


Registered: 06/15/11
Posts: 3,831
Loc: FREEDOM Flag
Re: Cultivation General Discussion [Re: Stipe-n Cap]
    #26654912 - 05/07/20 11:14 AM (3 years, 9 months ago)

kinda makes sense. Book I'm reading now suggests a blower between 200 and 250cfm per cubic foot of filter. Assuming 0.8 static pressure filter and 0.2 static pressure pre filter. Then it has a chart that suggests 800-1000cfm for a 24x24 filter.
Since that blower is a 2 speed that supposedly does up to 1360 I figured it would be overpowered and I could dial it back some by blocking the intake.
Really I just need to know if that's the right kind of HEPA filter I can figure out and buy the blower later I only have enough for one component now.


--------------------
Trade List
🖕🖕🖕
6 hole Mini Monos

Extras: Filter Print Post Top
InvisibleStipe-n CapMDiscord
Male User Gallery

Registered: 08/04/12
Posts: 7,658
Loc: Canada Flag
Trusted Cultivator
Re: Cultivation General Discussion [Re: gizmo1]
    #26654925 - 05/07/20 11:21 AM (3 years, 9 months ago)

I'd try to get a better efficiency filter, I think that people use the .3 micron but if you're going to spend that much money on something I'd go with  99.9995% @ .1 microns. If you buy a centrifugal fan you can use a speed controller instead of causing stress on the blower by clogging up the intake. Squirrel cage fans don't perform well with high static pressure and don't allow for the use of a speed controller.

Extras: Filter Print Post Top
Invisiblegizmo1
Other User Gallery


Registered: 06/15/11
Posts: 3,831
Loc: FREEDOM Flag
Re: Cultivation General Discussion [Re: Stipe-n Cap]
    #26654927 - 05/07/20 11:25 AM (3 years, 9 months ago)

Quote:

p9hu7 said:
I'd try to get a better efficiency filter, I think that people use the .3 micron but if you're going to spend that much money on something I'd go with  99.9995% @ .1 microns.



Didn't even consider the micron I was looking at the 99.99 I knew I didn't want to go with the 99.97 or whatever the lower efficiency ones are I'll keep looking thanks bro.


--------------------
Trade List
🖕🖕🖕
6 hole Mini Monos

Extras: Filter Print Post Top
InvisibleStipe-n CapMDiscord
Male User Gallery

Registered: 08/04/12
Posts: 7,658
Loc: Canada Flag
Trusted Cultivator
Re: Cultivation General Discussion [Re: gizmo1]
    #26654931 - 05/07/20 11:30 AM (3 years, 9 months ago)

No prob:thumbup:

Extras: Filter Print Post Top
Invisiblenatedawgnow
Rocky mountain hood rat
 User Gallery


Registered: 02/09/15
Posts: 8,940
Loc: ation
Trusted Cultivator
Re: Cultivation General Discussion [Re: Stipe-n Cap]
    #26654941 - 05/07/20 11:34 AM (3 years, 9 months ago)

Quote:

p9hu7 said:
I'd try to get a better efficiency filter, I think that people use the .3 micron but if you're going to spend that much money on something I'd go with  99.9995% @ .1 microns. If you buy a centrifugal fan you can use a speed controller instead of causing stress on the blower by clogging up the intake. Squirrel cage fans don't perform well with high static pressure and don't allow for the use of a speed controller.



Squirrel cage blowers work excellently against resistance, that's wht they're
made for. A furnace and ductwork create tons of resistance on furnace blowers.

Vortex fans are the ones that don't work well against resistance, but they can
be wired to a speed controller. My 1st hood is a 2x2 with a SC blower hooked up
to a speed controller and I never had any issues for 3+ years, but they can burn out some motors.


--------------------

Extras: Filter Print Post Top
InvisibleStipe-n CapMDiscord
Male User Gallery

Registered: 08/04/12
Posts: 7,658
Loc: Canada Flag
Trusted Cultivator
Re: Cultivation General Discussion [Re: natedawgnow] * 1
    #26654986 - 05/07/20 11:53 AM (3 years, 9 months ago)

I'm just relaying what I was told by the HVAC guy at Grainger.
I noticed while looking for a Dayton blower for my 24x48 filter that I couldn't find single blowers with high enough CFM at my required SP. He recommended a centrifugal fan or run dual squirrel cage. Dayton style blowers are great for filters with lower surface area, not so much for larger units (even though I'veseen it done I couldn'tfind one for mine :shrug:).

I'm not an HVAC professional, but he certainly was.

This is what he recommended:


Runs at 911 CFM @ 1.0" SP, but runs at like 1500cfm free air I think...can't remember.

Edited by Stipe-n Cap (05/07/20 12:24 PM)

Extras: Filter Print Post Top
Invisiblenatedawgnow
Rocky mountain hood rat
 User Gallery


Registered: 02/09/15
Posts: 8,940
Loc: ation
Trusted Cultivator
Re: Cultivation General Discussion [Re: Stipe-n Cap]
    #26655135 - 05/07/20 12:59 PM (3 years, 9 months ago)

He doesnt know what he's talking about then unfortunately. A centrifugal fan is a squirrel cage blower
https://en.m.wikipedia.org/wiki/Centrifugal_fan

Quote:

such a fan is also called a blower fan, biscuit blower[citation needed], or squirrel-cage fan (because it looks like a hamster wheel




Imagine how much resistance there is in a bounce house. Squirrel cage fans are
what they use to blow those up


--------------------

Extras: Filter Print Post Top
Invisiblenatedawgnow
Rocky mountain hood rat
 User Gallery


Registered: 02/09/15
Posts: 8,940
Loc: ation
Trusted Cultivator
Re: Cultivation General Discussion [Re: natedawgnow]
    #26655138 - 05/07/20 01:00 PM (3 years, 9 months ago)

Mycolorados hood is 4x4 or something like that and he uses an old furnace blower
if I'm not mistaken. I use an old furnace blower on my current 2x3


--------------------

Extras: Filter Print Post Top
InvisibleStipe-n CapMDiscord
Male User Gallery

Registered: 08/04/12
Posts: 7,658
Loc: Canada Flag
Trusted Cultivator
Re: Cultivation General Discussion [Re: natedawgnow]
    #26655164 - 05/07/20 01:09 PM (3 years, 9 months ago)

Ah, yeah I'm sure you're right. He may have been having one of those days I suppose. Fuckin "professionals" lol.

4x4 is pretty epic. 24x48 seemed like a monster at the time.

Extras: Filter Print Post Top
InvisibleHobbit GDF
Deadhead
Male


Registered: 02/14/19
Posts: 3,416
Loc: Terrapin station Flag
Re: Cultivation General Discussion [Re: Stipe-n Cap]
    #26655392 - 05/07/20 03:30 PM (3 years, 9 months ago)

I use dayton 1tdu2 for my 2x2x6. I have it bogged down with two pre filters and filter cloth folded on top of that.

Hey big question.  Are 99.97 hepa filters good for FH.
They work just fine right?

Extras: Filter Print Post Top
InvisibleStipe-n CapMDiscord
Male User Gallery

Registered: 08/04/12
Posts: 7,658
Loc: Canada Flag
Trusted Cultivator
Re: Cultivation General Discussion [Re: Hobbit GDF]
    #26655410 - 05/07/20 03:39 PM (3 years, 9 months ago)

Yes they work but the more efficiency the better.

I have the same blower on my 12x24 hood. The issue with piling prefilters on is that they add significant static pressure, the video I posted shows that one of the most common 1" filters on the market adds .4" SP. Too many will reduce the efficiency of your hood. 1 filter should be plenty.
Look at how quickly the CFM drops of with added SP from free air on the Dayton 1TDT2.




So to get 100ft/min of flow across your filter you need 400cfm, at 6" of depth your HEPA probably has .5"SP min by itself (but more than likely sits at 1"SP)
which puts you at 450 CFM. Not much wiggle room there for many prefilters before you inhibit laminar flow. At .8 SP you're already below the min CFM for laminar flow. If your HEPA has a flow rate of 100cfm at 1" then you're already below laminar flow without adding prefilters. You may want to check that out :shrug:


Edited by Stipe-n Cap (05/07/20 04:05 PM)

Extras: Filter Print Post Top
InvisibleHobbit GDF
Deadhead
Male


Registered: 02/14/19
Posts: 3,416
Loc: Terrapin station Flag
Re: Cultivation General Discussion [Re: Stipe-n Cap]
    #26655475 - 05/07/20 04:09 PM (3 years, 9 months ago)

If mine isnt bogged down with all it is it would blow way to hard.


How many of you guys have 99.97 filters in your FH.
I think mine is 99.97.
I think when I buy my next I want 99.99

Extras: Filter Print Post Top
InvisibleStipe-n CapMDiscord
Male User Gallery

Registered: 08/04/12
Posts: 7,658
Loc: Canada Flag
Trusted Cultivator
Re: Cultivation General Discussion [Re: Hobbit GDF]
    #26655491 - 05/07/20 04:15 PM (3 years, 9 months ago)

The numbers don't lie, brother. That blower isn't a good choice for a 2x2 hood blowing 400CFM. I have the exact same blower on a 12x24 without a prefilter. Blows just fine at 1"SP with less surface area without having to be choked down at all.

Extras: Filter Print Post Top
InvisibleHobbit GDF
Deadhead
Male


Registered: 02/14/19
Posts: 3,416
Loc: Terrapin station Flag
Re: Cultivation General Discussion [Re: Stipe-n Cap]
    #26655525 - 05/07/20 04:34 PM (3 years, 9 months ago)

I have itdu2. That's not the one your talking about.

Extras: Filter Print Post Top
InvisibleStipe-n CapMDiscord
Male User Gallery

Registered: 08/04/12
Posts: 7,658
Loc: Canada Flag
Trusted Cultivator
Re: Cultivation General Discussion [Re: Hobbit GDF]
    #26655537 - 05/07/20 04:39 PM (3 years, 9 months ago)

Quote:

Hobbit GDF said:
I have itdu2. That's not the one your talking about.




:facepalm: my bad, didn't notice the "U". That's what I get for being to eager to help lol. Time to get off of the internet and go outside.


Extras: Filter Print Post Top
InvisibleHobbit GDF
Deadhead
Male


Registered: 02/14/19
Posts: 3,416
Loc: Terrapin station Flag
Re: Cultivation General Discussion [Re: Stipe-n Cap]
    #26655694 - 05/07/20 06:06 PM (3 years, 9 months ago)

But I'm real question is should I buy the filter that's 99.97?
Micropleat 24x24x6 99.97% @.3 microns

Extras: Filter Print Post Top
InvisibleStipe-n CapMDiscord
Male User Gallery

Registered: 08/04/12
Posts: 7,658
Loc: Canada Flag
Trusted Cultivator
Re: Cultivation General Discussion [Re: Hobbit GDF]
    #26655713 - 05/07/20 06:16 PM (3 years, 9 months ago)

If you have the option to buy 99.9995% @ .1 microns definitely go for that. It's what I purchased and it's the industry standard here.
I've seen hoods built with the one you're talking about, they usually have metal fins and cork sides though, same efficiency. I'm sure they work or people wouldn't use them.

Extras: Filter Print Post Top
InvisibleHobbit GDF
Deadhead
Male


Registered: 02/14/19
Posts: 3,416
Loc: Terrapin station Flag
Re: Cultivation General Discussion [Re: Stipe-n Cap]
    #26655778 - 05/07/20 06:40 PM (3 years, 9 months ago)

I'm pretty sure mine now is. I just wanted to be sure

Extras: Filter Print Post Top
OfflineCocaineBuffet
Stranger
 User Gallery


Registered: 08/29/19
Posts: 3,534
Last seen: 13 hours, 24 minutes
Trusted Cultivator
Re: Cultivation General Discussion [Re: Hobbit GDF]
    #26655892 - 05/07/20 07:42 PM (3 years, 9 months ago)

2 things I would appreciate some in put on

Would a pinning plate be clean enough to inoculate grains with or would it be better if I transferred to a new plate?

How are you guys re-hydrating your shoebox substrates. I have been misting directly after harvesting until the surface is soaked but by the next day  it is dry to the touch. Should I be letting it soak for a couple hours and pour off excess?

Extras: Filter Print Post Top
OfflineMH5109
Stranger
 User Gallery

Registered: 09/27/17
Posts: 1,385
Loc: America Flag
Last seen: 3 years, 25 days
Re: Cultivation General Discussion [Re: CocaineBuffet]
    #26656054 - 05/07/20 09:06 PM (3 years, 9 months ago)

Just put a couple cups of h20 in the sb till the sub floats and dump it out after a few hrs or overnight. I usually just dump mine in the morning when I get up.


--------------------



Extras: Filter Print Post Top
Jump to top Pages: < First | < Back | 1663 | 1664 | 1665 | 1666 | 1667 | 1668 | 1669 | 1670 | 1671 | 1672 | 1673 | 1674 | 1675 | 1676 | 1677 | 1678 | 1679 | 1680 | 1681 | 1682 | 1683 | Next > | Last >

Shop: North Spore Bulk Substrate, Injection Grain Bag   MagicBag.co All-In-One Bags That Don't Suck, Certified Organic All-In-One Grow Bags   PhytoExtractum Buy Bali Kratom Powder, Maeng Da Thai Kratom Leaf Powder


Similar ThreadsPosterViewsRepliesLast post
* question about outdoor cultivation WhoWhatWhen 1,842 11 04/16/03 12:36 AM
by oO_wombat_Oo
* Supa’s LIVE/UNCUT H2O2 experiments!
( 1 2 3 all )
SupaThaRipper 607 46 03/01/24 08:33 AM
by Mwj12977
* Post Your Cultivation Picture of The Day
( 1 2 3 4 ... 7479 7480 )
saralove 4,322,635 149,590 03/01/24 10:26 AM
by Psicomb
* Start to Finish - Complete Guide to Bulk Cultivation erags 12,471 11 03/25/05 11:15 PM
by Riggidy
* Hydrogen Peroxide (h2o2) often propagated mistruths lysergic 6,626 11 07/13/03 04:45 PM
by Baby_Hitler
* alt.drugs.mushrooms.cultivation (good/bad idea) BikeCourier 6,462 9 10/26/21 06:04 PM
by LogicaL Chaos
* Vegetative growth VS generative growth? LoveLightPeace 1,546 1 06/04/18 02:15 PM
by jason9086
* Re: 101 ways to use h2o2? Anonymous 1,364 7 02/14/00 12:27 AM
by toad

Extra information
You cannot start new topics / You cannot reply to topics
HTML is disabled / BBCode is enabled
Moderator: Shroomism, george castanza, RogerRabbit, veggie, mushboy, fahtster, LogicaL Chaos, 13shrooms, Stipe-n Cap, Pastywhyte, bodhisatta, Tormato, Land Trout, A.k.a
1,199,218 topic views. 47 members, 353 guests and 67 web crawlers are browsing this forum.
[ Show Images Only | Sort by Score | Print Topic ]
Search this thread:

Copyright 1997-2024 Mind Media. Some rights reserved.

Generated in 0.054 seconds spending 0.03 seconds on 14 queries.