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Re: Get Quick Answers [Re: Nichrome]
    #28322576 -

Hey, I've been getting into growing gourmet mushrooms and I'm finally going to build a real flow hood. I need some help checking my work to make sure I haven't made any glaring errors in selecting my filter and fan. 
 
I haven't seen either product around much. The filter is 5 square feet with a w.g. of 0.8 at 720 CFM, and there will be another 0.1-0.3 w.g. produced by the pre-filter. I'm assuming the static pressure will put the blower at about half its listed 1000 CFM (no fan curve available), around 500 CFM. That translates to 100fpm over the 5 square feet, a fairly standard flow rate for a hood like this. Do these types of blower fans work for flow hoods? I'm a little concerned as I haven't seen this kind of fan used for DIY flow hoods. Anything I should know about a filter like this? Are there cheaper alternatives I've overlooked? 
 
Thanks!

Extras: Filter Print Post Top
Re: Get Quick Answers [Re: volleyshroom]
    #28322605 -

If that fan is mounted so that it isn't blowing directly at the filter, as you always see in boutique flow hoods where the fan is on top firing down ... Then to me it certainly seems plausible that it would work. But what gives me pause is that the description suggests it has 3 power levels, and not a smooth gradient. I'd be worried you could not dial in just the right speed for good laminar flow.

It looks like your design is about $300 in parts not counting the cabinet. Depending on how you feel about building stuff, a commercial 2 ft x 2 ft model for about $500 may be worth the dough instead. (That's the kind @San Pedro Girl has.)

I like making stuff but I absolutely hate working with wood, so I'm unlikely to build a unit unless I find plans with every panel dimension and screw hole documented.


--------------------
We have not succeeded in answering all our problems. The answers we have found only serve to raise a whole set of new questions. In some ways we feel we are as confused as ever, but we believe we are confused on a higher level and about more important things. -- Earl C. Kelley

Things I really wish I knew when I started // Vacuum sealer discussion thread // Shroomery gif zoo

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Re: Get Quick Answers [Re: johnukguy]
    #28322610 -

Awesome, thank you!

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Re: Get Quick Answers [Re: johnukguy]
    #28322617 -

Quick question: does anyone else wipe their lids?
I get excess condensation that eventually pools in my shoeboxes if I don’t. Sometimes it happens in tubs as well. Of course in either scenario I am referring to the topmost box, as they are stacked. I initially thought this would cause a problem as they are not “true” shoeboxes. But the added pressure on top bends the lid slightly which stretches the frame, creating a minuscule gap. I haven’t had any problems with it. I have accounted for temp swings.
Thank you


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----<><><>----

⁂ tail-lights, back-pockets, rearview mirrors ⁂

⁂ guides | grows | supreme air box | sporeaddict ⁂

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Re: Get Quick Answers [Re: Yuggoth]
    #28322618 -

Thanks for looking it over. I'm planning on mounting the fan on top of the flow hood pointing downward as you suggested. As for the fan's power levels, I was thinking I could more precisely control the flow by adding additional layers of otherwise unnecessary pre-filter to fine-tune the CFM. Sure, this would draw more power than necessary, but hopefully not by much. Preferably, I may try a speed controller like this. I believe it would work inline with the fan I'm interested in using. 
 
I have some fun working with wood and doing DIY projects but I still have to source and price out the rest of the materials for the cabinet before making a final decision. That $500 plug and play hood is certainly tempting... thanks for pointing me in that direction!

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Re: Get Quick Answers [Re: volleyshroom]
    #28322630 -

I suspect that speed controller would do the trick if you needed more control, yeah. Cool. I've used one like that for other AC motors.

Good luck if you build it and let us know how it goes!


--------------------
We have not succeeded in answering all our problems. The answers we have found only serve to raise a whole set of new questions. In some ways we feel we are as confused as ever, but we believe we are confused on a higher level and about more important things. -- Earl C. Kelley

Things I really wish I knew when I started // Vacuum sealer discussion thread // Shroomery gif zoo

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Re: Get Quick Answers [Re: Nichrome]
    #28322685 -

Any idea what this fluffy stuff is?


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Re: Get Quick Answers [Re: Proposition 122]
    #28322697 -

Proposition 122 said:
altford78 said:
Cool, thanks. I was actually wondering whether I should give them some light (or a light/dark cycle) since mine are also mostly sitting in the dark.


FWIW
"Light is not essential in the mycelial growth period. However, in the period of initiation and growth of fruiting bodies, it is a decisive factor for obtaining a high yield of good quality." Jan 4, 2022
https://www.ncbi.nlm.nih.gov/pmc/articles/PMC8726465/


:nodofunderstanding:

Thanks !


--------------------
Mold cultivator extraordinaire

I also dabble in bacteria

I'm also a retard sometimes

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Re: Get Quick Answers [Re: volleyshroom]
    #28322724 -

volleyshroom said:
Thanks for looking it over. I'm planning on mounting the fan on top of the flow hood pointing downward as you suggested. As for the fan's power levels, I was thinking I could more precisely control the flow by adding additional layers of otherwise unnecessary pre-filter to fine-tune the CFM. Sure, this would draw more power than necessary, but hopefully not by much. Preferably, I may try a speed controller like this. I believe it would work inline with the fan I'm interested in using. 
 
I have some fun working with wood and doing DIY projects but I still have to source and price out the rest of the materials for the cabinet before making a final decision. That $500 plug and play hood is certainly tempting... thanks for pointing me in that direction!


mushboy's FFU thread might be of interest to you https://www.shroomery.org/forums/showflat.php/Number/27326209/vc/1

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Re: Get Quick Answers [Re: stockw]
    #28322735 -

OK this is probably super obvious and extreme noob shit but I can't figure it out, probably since I've never done it and it's just theoretical in my head.

Let's say you want to do a 1:1 ratio of spawn:coir.
A "mycoquart" of spawn is like 1/2 to 3/4 of a quart jar, right? So you take one of those.
How do you then measure a quart of coir ? Do you keep an empty quart jar and fill that ? Do you fill the jar to the brim or to the same level as the spawn jar?

On top of that we don't use quarts in commieland, my jars are 1L or 500ml or whatever ml. But fuck it, 1quart=1L is good enough for the girls I go out with.


--------------------
Mold cultivator extraordinaire

I also dabble in bacteria

I'm also a retard sometimes

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Re: Get Quick Answers [Re: Nichrome]
    #28322738 -

I use a quart jar or a standard 4 cup measuring cup.


--------------------
----<><><>----

⁂ tail-lights, back-pockets, rearview mirrors ⁂

⁂ guides | grows | supreme air box | sporeaddict ⁂

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Re: Get Quick Answers [Re: MushyMom]
    #28322739 -

MushyMom said:
Any idea what this fluffy stuff is?




I want to say it’s a fucked tub but wait for another opinion. Any smells? Can we get a better picture?


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Help US help YOU TEK

2023 Dehydrator TEK

Edited by Screwup (05/17/23 05:43 AM)

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Re: Get Quick Answers [Re: altford78]
    #28322742 -

altford78 said:
OK this is probably super obvious and extreme noob shit but I can't figure it out, probably since I've never done it and it's just theoretical in my head.

Let's say you want to do a 1:1 ratio of spawn:coir.
A "mycoquart" of spawn is like 1/2 to 3/4 of a quart jar, right? So you take one of those.
How do you then measure a quart of coir ? Do you keep an empty quart jar and fill that ? Do you fill the jar to the brim or to the same level as the spawn jar?

On top of that we don't use quarts in commieland, my jars are 1L or 500ml or whatever ml. But fuck it, 1quart=1L is good enough for the girls I go out with.


lol I'm from UK & this caught me out for a while. I would do my ratios by weight so 1qt jar of spawn (500g thereabouts) & then weigh 1kg of hydrated coir thinking that was a 1:2 ratio which was wrong.

nowadays I just use an empty 1qt jar & fill it up with coir.. 1 jar = 1qt of substrate.

Although the quantities don't seem to be that important if you have completely clean spawn. SPG & Beef talk about going 1:6 with no issues. Field capacity is important however.

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Re: Get Quick Answers [Re: altford78]
    #28322757 -

I don't get what confuses people about this. So much so that I almost think I'm the crazy one. If you want a 1:1 ratio and have 2 jars filled with 3/4th of grain. Just do one and half (1.5) jars of hydrated coir? :shrug:

It also doensn't have to be so precise. A 1:1.1 ratio by accidentally overfilling the jar a bit isn't going to ruin your entire grow lmao. And if you do want to be so precise, just use a sharpie to mark the grain line and fill it with coir to that line.


--------------------
How I grow mushrooms 🍄
How I do agar 🦠

Edited by Throwaway (05/17/23 06:27 AM)

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Re: Get Quick Answers [Re: Throwaway] * 1
    #28322759 -

Quarts are volume not weight, so a 1 to 1 ratio is just using the same end volume of each.

1:2 ratio, using a random mug you have strewn about, 1 mug grain to every 2 mugs of hydrated prepped coir.


--------------------
My posts are long winded and dense.
Supplemented coir experiments< Currently ongoing spring 2026.

~Agar~ 1000mL water = 1000g water. use ~1% agar...1% of 1000g is 10g.  For cubes, use between 1-2% nutes (10-20g). For pans use 0.5% nutes (5g).

Everything I have typed is purely fiction, and is purely for personal amusement.
All images I've posted are not mine and I am simply posting interesting things I found on the Google.

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Re: Get Quick Answers [Re: Throwaway]
    #28322763 -

Throwaway said:
I don't get what confuses people about this. So much so that I almost think I'm the crazy one. If you want a 1:1 ratio and have 2 jars filled with 3/4th of grain. Just do one and half (1.5) jars of hydrated coir? :shrug:

It also doensn't have to be so precise. A 1:1.1 ratio by accidentally overfilling the jar a bit isn't going to ruin your entire grow lmao. And if you do want to be so precise, just use a sharpie to mark the grain line and fill it with coir to that line.


Because a ratio can apply to any measuring system, that's where the confusion lies. Sure once you've figured it out it's simple.

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Re: Get Quick Answers [Re: stockw] * 1
    #28322764 -

Idk I feel like…it’s pretty simple regardless lol. Two apples to one orange.


--------------------
🅃 🄴 🄰 🄼    🄲 🄻 🄸 🄽 🄶 🅆 🅁 🄰 🄿


Help US help YOU TEK

2023 Dehydrator TEK

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Re: Get Quick Answers [Re: stockw] * 1
    #28322769 -

stockw said:
Because a ratio can apply to any measuring system, that's where the confusion lies. Sure once you've figured it out it's simple.


Yeah so people just don't know what a ratio is. You could use lampshades or shoe-fulls to measure it out lol.


--------------------
How I grow mushrooms 🍄
How I do agar 🦠

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Re: Get Quick Answers [Re: Throwaway] * 1
    #28322774 -

One American football to three yard sticks. 1:3 ratio BAAAAAAAAM


--------------------
🅃 🄴 🄰 🄼    🄲 🄻 🄸 🄽 🄶 🅆 🅁 🄰 🄿


Help US help YOU TEK

2023 Dehydrator TEK

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Re: Get Quick Answers [Re: Screwup]
    #28322778 -

So unless specified, someone could think a 1:2 ratio would mean by weight & not volume. So if someone was to use 2kg of spawn to 4kg of coir in a mono that might be an issue

1qt of my coir weighs 280g for example. I'm not saying it's difficult, it can just be confusing for people not on US system.

The units are not the same by volume & weight.

My face hurts.

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Mushrooms, Mycology and Psychedelics > Mushroom Cultivation
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