Home | Community | Message Board


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: PhytoExtractum Maeng Da Thai Kratom Leaf Powder   Left Coast Kratom Buy Kratom Extract   Unfolding Nature Unfolding Nature: Being in the Implicate Order   North Spore North Spore Mushroom Grow Kits & Cultivation Supplies

Jump to first unread post Pages: 1 | 2 | Next >  [ show all ]
OfflineDoyledozo
Humble student
Male


Registered: 10/22/19
Posts: 156
Last seen: 7 months, 18 days
Sorry for another flow hood post... Need help
    #26794652 - 06/30/20 02:11 PM (3 years, 6 months ago)

I've already chosen my filter poorly I believe. Have a Koch biomax 99.97 24 x 18 x12 coming. Finding a blower is very frustrating. The Dayton 1TDT2 seems like it would barely push enough if that at 1.2" SP. I'm thinking I want more towards 320 - 340 at SP. Anyone have a model number that pushes that little bit more?


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

Registered: 08/04/12
Posts: 7,623
Loc: Canada Flag
Trusted Cultivator
Re: Sorry for another flow hood post... Need help [Re: Doyledozo]
    #26794749 - 06/30/20 02:47 PM (3 years, 6 months ago)

Knowing the surface area isn't enough to help, we need to know how much SP it has.
Click the link in my sig.


Extras: Filter Print Post Top
OfflineDoyledozo
Humble student
Male


Registered: 10/22/19
Posts: 156
Last seen: 7 months, 18 days
Re: Sorry for another flow hood post... Need help [Re: Stipe-n Cap]
    #26794759 - 06/30/20 02:50 PM (3 years, 6 months ago)

It's 1" plus .2 for the prefilter according to the Koch PDF


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

Registered: 08/04/12
Posts: 7,623
Loc: Canada Flag
Trusted Cultivator
Re: Sorry for another flow hood post... Need help [Re: Doyledozo]
    #26794793 - 06/30/20 03:04 PM (3 years, 6 months ago)

So you've figured out what your blower needs to push at that SP, yes?


Extras: Filter Print Post Top
OfflineDoyledozo
Humble student
Male


Registered: 10/22/19
Posts: 156
Last seen: 7 months, 18 days
Re: Sorry for another flow hood post... Need help [Re: Stipe-n Cap]
    #26794809 - 06/30/20 03:10 PM (3 years, 6 months ago)

Yes. A minimum of 300 CFM hopefully something that's closer to 360. Dayton 1TDT8 specs stop after .8" SP. I know this has been discussed ALOT on here. I'm just getting frustrated. Between mush cult threads and blower spec searches I've had at least a dozen tabs open for days lol


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

Registered: 08/04/12
Posts: 7,623
Loc: Canada Flag
Trusted Cultivator
Re: Sorry for another flow hood post... Need help [Re: Doyledozo]
    #26794825 - 06/30/20 03:19 PM (3 years, 6 months ago)

Matching a blower can be frustrating, unfortunately it takes a ton of searching. It would be nice to have a way to determine SP beyond what's listed. There must be a formula to determine drop off for each .1 increase in resistance but I'm not aware of it. Not much help here, sorry bud.


Extras: Filter Print Post Top
OfflineDoyledozo
Humble student
Male


Registered: 10/22/19
Posts: 156
Last seen: 7 months, 18 days
Re: Sorry for another flow hood post... Need help [Re: Stipe-n Cap]
    #26794833 - 06/30/20 03:25 PM (3 years, 6 months ago)

Wish I had gone with the 99.99% 24 x 12 from Flanders. Wonder if I can cancel my eBay/Zoro order


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

Registered: 08/04/12
Posts: 7,623
Loc: Canada Flag
Trusted Cultivator
Re: Sorry for another flow hood post... Need help [Re: Doyledozo]
    #26794835 - 06/30/20 03:25 PM (3 years, 6 months ago)

Only one way to find out. Check out Myers mushrooms as well, he has filters and FFUs.

https://myersmushrooms.com/


Extras: Filter Print Post Top
Invisiblesandman420
Saint PP
Male


Registered: 06/17/04
Posts: 5,384
Trusted Cultivator
Re: Sorry for another flow hood post... Need help [Re: Stipe-n Cap]
    #26794914 - 06/30/20 04:10 PM (3 years, 6 months ago)

It's not 1" SP. According to some calculations from the biomax PDF, The 12" biomax filters has a 1.0" initial pressure at around 260 fpm test speed. But at 100 fpm the pressure will be lower. Probably around 0.4" or so. It's not perfectly linear. So you really only need a 300 cfm @ ~0.6" sp blower. I can tell you for sure that 6" biomax filters make about 0.6" SP at 100 fpm from personal experience. A 12" thick filter should in theory have something like half the resistance. More filter material surface area = less resistance. The material is not actually 12" thick its just about 1/4" thick, it is just folded over a piece of aluminum to fill the 12" deep frame.


--------------------
- Sandbag Tek - How To Sterilize Spawn Bags - All About Static Pressure / Pressure Drop for DIY Flow Hoods - Sandman's LC Tek-

Marijuanaut escapes earth to cultivate - Grow-room is church temple of the new stoner breed


Extras: Filter Print Post Top
OfflineDoyledozo
Humble student
Male


Registered: 10/22/19
Posts: 156
Last seen: 7 months, 18 days
Re: Sorry for another flow hood post... Need help [Re: sandman420]
    #26794926 - 06/30/20 04:12 PM (3 years, 6 months ago)

If this is true you just made my day!


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

Registered: 08/04/12
Posts: 7,623
Loc: Canada Flag
Trusted Cultivator
Re: Sorry for another flow hood post... Need help [Re: Doyledozo]
    #26794953 - 06/30/20 04:22 PM (3 years, 6 months ago)

Post the chart.


Extras: Filter Print Post Top
Invisiblesandman420
Saint PP
Male


Registered: 06/17/04
Posts: 5,384
Trusted Cultivator
Re: Sorry for another flow hood post... Need help [Re: Stipe-n Cap]
    #26794965 - 06/30/20 04:26 PM (3 years, 6 months ago)

https://www.kochfilter.com/file/11863/BioMAX%20HEPA

I was using the 24x24 standard capacity for reference because of easy math for the few that are listed and shows both 12 and 6". You can see that the 6" thick filter was tested at 550 CFM and the 12" filter was tested at 1050 CFM. That would make the 12" filter 1.0" SP at 262.5 fpm and the 6" filter 1.0" SP at 137.5 fpm. And this should be the same for his filter even though it is a slightly different size its the same pack.


--------------------
- Sandbag Tek - How To Sterilize Spawn Bags - All About Static Pressure / Pressure Drop for DIY Flow Hoods - Sandman's LC Tek-

Marijuanaut escapes earth to cultivate - Grow-room is church temple of the new stoner breed


Edited by sandman420 (06/30/20 04:35 PM)


Extras: Filter Print Post Top
OfflineDoyledozo
Humble student
Male


Registered: 10/22/19
Posts: 156
Last seen: 7 months, 18 days
Re: Sorry for another flow hood post... Need help [Re: sandman420]
    #26794991 - 06/30/20 04:44 PM (3 years, 6 months ago)

I won't pretend to understand the intricacies of this but if I can run the 1TDT2 with at least one prefilter successfully I'll be very happy.


Extras: Filter Print Post Top
Invisiblesandman420
Saint PP
Male


Registered: 06/17/04
Posts: 5,384
Trusted Cultivator
Re: Sorry for another flow hood post... Need help [Re: sandman420]
    #26794992 - 06/30/20 04:44 PM (3 years, 6 months ago)

Now that all goes out the window if you ordered the high capacity version you will need to add like 0.2" to that number.


--------------------
- Sandbag Tek - How To Sterilize Spawn Bags - All About Static Pressure / Pressure Drop for DIY Flow Hoods - Sandman's LC Tek-

Marijuanaut escapes earth to cultivate - Grow-room is church temple of the new stoner breed


Extras: Filter Print Post Top
Invisiblesandman420
Saint PP
Male


Registered: 06/17/04
Posts: 5,384
Trusted Cultivator
Re: Sorry for another flow hood post... Need help [Re: sandman420]
    #26794995 - 06/30/20 04:46 PM (3 years, 6 months ago)

You can run a 1TDT2 on that no problem. Probably have to block a little bit of the intake, even.


--------------------
- Sandbag Tek - How To Sterilize Spawn Bags - All About Static Pressure / Pressure Drop for DIY Flow Hoods - Sandman's LC Tek-

Marijuanaut escapes earth to cultivate - Grow-room is church temple of the new stoner breed


Extras: Filter Print Post Top
OfflineDoyledozo
Humble student
Male


Registered: 10/22/19
Posts: 156
Last seen: 7 months, 18 days
Re: Sorry for another flow hood post... Need help [Re: sandman420]
    #26795008 - 06/30/20 04:54 PM (3 years, 6 months ago)



Extras: Filter Print Post Top
Invisiblesandman420
Saint PP
Male


Registered: 06/17/04
Posts: 5,384
Trusted Cultivator
Re: Sorry for another flow hood post... Need help [Re: Doyledozo]
    #26795041 - 06/30/20 05:11 PM (3 years, 6 months ago)

G1 is standard capacity particle board in the product code so you have regular.


--------------------
- Sandbag Tek - How To Sterilize Spawn Bags - All About Static Pressure / Pressure Drop for DIY Flow Hoods - Sandman's LC Tek-

Marijuanaut escapes earth to cultivate - Grow-room is church temple of the new stoner breed


Extras: Filter Print Post Top
OfflineDoyledozo
Humble student
Male


Registered: 10/22/19
Posts: 156
Last seen: 7 months, 18 days
Re: Sorry for another flow hood post... Need help [Re: sandman420]
    #26795052 - 06/30/20 05:17 PM (3 years, 6 months ago)

Perfect. Not panicking anymore.


Extras: Filter Print Post Top
OfflineDoyledozo
Humble student
Male


Registered: 10/22/19
Posts: 156
Last seen: 7 months, 18 days
Re: Sorry for another flow hood post... Need help [Re: Doyledozo]
    #26795076 - 06/30/20 05:31 PM (3 years, 6 months ago)

While I have you here.. is there any reason I can't put the blower behind the plenum encased in a compartment with the back end open or covered with grating? The prefilter should suck up to it when it runs. Storage would easier for me if it were just 1 20" x 26" x "36ish box.


Extras: Filter Print Post Top
Invisiblesandman420
Saint PP
Male


Registered: 06/17/04
Posts: 5,384
Trusted Cultivator
Re: Sorry for another flow hood post... Need help [Re: Doyledozo]
    #26795118 - 06/30/20 05:55 PM (3 years, 6 months ago)

I think I see what you are saying. Like this?



If so there is no reason you couldnt make it work. Many real hoods have the blowers in odd places. Don't think you are going to be moving this around though. Especially making the box so big. It will be heaaaavy and bulky. Too much to grab. Also make sure there is plenty of room in between the prefilter box and the back of the filter, I'd shoot for like 8-10"+ if it was my design.


--------------------
- Sandbag Tek - How To Sterilize Spawn Bags - All About Static Pressure / Pressure Drop for DIY Flow Hoods - Sandman's LC Tek-

Marijuanaut escapes earth to cultivate - Grow-room is church temple of the new stoner breed


Extras: Filter Print Post Top
Jump to top Pages: 1 | 2 | Next >  [ show all ]

Shop: PhytoExtractum Maeng Da Thai Kratom Leaf Powder   Left Coast Kratom Buy Kratom Extract   Unfolding Nature Unfolding Nature: Being in the Implicate Order   North Spore North Spore Mushroom Grow Kits & Cultivation Supplies


Similar ThreadsPosterViewsRepliesLast post
* Oven Hood to flow hood conversion? G a n j a 2,085 3 01/13/03 04:23 AM
by debianlinux
* Hepa type filter - flow hood - cheap & easy
( 1 2 all )
SixTango 16,374 25 04/09/02 11:14 AM
by rebelmoon
* sharper image ionic breeze ? convertable flow hood kzlazy 1,071 2 04/19/02 11:05 PM
by kzlazy
* Hepa Air Purifier Flow Hood? tenaciousC 2,738 1 04/20/02 06:51 PM
by Baccus
* Post deleted by Administrator PsilosKube 908 3 07/16/02 03:17 PM
by MicronMagick
* laminar air flow hood question yogithehoneybear 1,944 2 01/27/02 06:20 AM
by mycofile
* flow hoods and blower motors quietnick 1,607 3 07/15/02 11:59 AM
by groingrinder
* flow hood ast 657 2 07/22/02 06:12 AM
by bluefoot

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
200 topic views. 33 members, 260 guests and 45 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 0.029 seconds spending 0.01 seconds on 16 queries.