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InvisibleBsdgaou

Registered: 02/20/19
Posts: 340
Grow chamber setup
    #26733441 - 06/10/20 05:02 AM (3 years, 8 months ago)

Hi guys, can you help me with constructing grow chamber? Mostly I need some numbers with size and "turnaround" technique. I am also open to other suggestions. Plan is 30kg per week, so 60-70 bags let's say. 2 flushes per bag.

It will be under the ground, where is steady 13-15°C and 55-60% RH. I plan to make it with wood and PVC foil. Shelves also. Because I can get wood for free and I am handy with it. I have concrete floor, but I think I will lift grow chamber and go with wood plate and PVC foil on it. Mostly because I can drill a drain hole that way. So, disc fogger on top of chamber, exhaust fan on bottom and outside of building.

6-7 lb bags (3-3.5 kg) are foot long (30 cm). How much space I need on top of the bags? I saw one member put bag on bag, but I think they're cooking that way. Another thing is I guess fog doesn't come to bags if shelves are 45-50 cm from each other. Also, where can I put humidity sensor - in the middle of the room or some driest corner?

How tall must be first shelf off the floor?
Is light at the top of chamber okay of I go with vertical in the middle of shelves? How much lumens?
Air should be exchanged 10 times per hours roughly. How do I calculate how much CFM I need?
How can I plan turnaround, what should I do each week? How many bags?


Edited by Bsdgaou (06/10/20 05:03 AM)


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Offlinetonz0Funguy
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Registered: 09/03/19
Posts: 200
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Re: Grow chamber setup [Re: Bsdgaou]
    #26733544 - 06/10/20 05:51 AM (3 years, 8 months ago)

I think you need to do more research, here this should help ya a lil to give you a better idea......https://www.shroomery.org/forums/showflat.php/Number/23768017 sick as grow room. Most of the ?'s you asked would depend on dimensions of you chamber. Build the room and then equip accordingly to size. Have you grown any mushrooms yet? If not start there before going balls to the wall to your feet wet.


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"The search bar is a oracle"


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InvisibleBsdgaou

Registered: 02/20/19
Posts: 340
Re: Grow chamber setup [Re: tonz0Funguy]
    #26733615 - 06/10/20 06:47 AM (3 years, 8 months ago)

Quote:

tonz0Funguy said:
I think you need to do more research, here this should help ya a lil to give you a better idea......https://www.shroomery.org/forums/showflat.php/Number/23768017 sick as grow room. Most of the ?'s you asked would depend on dimensions of you chamber. Build the room and then equip accordingly to size. Have you grown any mushrooms yet? If not start there before going balls to the wall to your feet wet.




Thanks for nothing.


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Offlineseagu

Registered: 03/03/18
Posts: 952
Last seen: 2 hours, 31 minutes
Re: Grow chamber setup [Re: Bsdgaou]
    #26733660 - 06/10/20 07:25 AM (3 years, 8 months ago)

PVC foil ??

A lot of the design will be personal preference. Humidity sensor placement can depend on your room and air flow. So, it may take you some test runs to listen to the mushrooms as you dial your room in. And yea you don't want the bags so they are sitting directly on top of each other. You want some space for air flow around the bags. Doesn't need to be much.

How many lumens? Off hand I don't know a number, but you want sunlight bright for the most part. Some reading of lighting on their websites will explain this.. and read the ones with pictures it really helps to show how bright or dim the numbers are.

As far as CFM.. you can also google "How much CFM do i need for air x air  exchanges per hour" or some such and get the formula for your room size.. And that also depends on what type of mushroom you are growing.. if it's oysters.. you want MORE.. So be prepared for needing to go higher CFM than what the charts say. Again, you won't really know fully until you get something set it up and grow the mushrooms and see how they do... then adjust and grow until it is what is called all dialed in.

I think shelves are supposed to be a minimum 6" off the floor.. But food is grown in the ground, potted plants with fruit on them are grown on the ground besides plants in the ground fertilized with poo and all sorts of stuff, so I can't say for sure if because it is growing placed on a shelf instead of on the ground that there is some set number. This is a farm growing food after all and not a restaurant storing picked food. And plenty of mushroom farmers will line their floor with bottles and bottles of mushrooms growing. Someone might have a better answer. Mine are 6-9 inches off the ground to be safe from someone complaining :cool: ...

As far as what steps you need to do each week.. You will see when you dial your grow room in.. It varies depending on how you are growing and all that.


--------------------
Plan to win or you are planning for failure. Don't let anyone tell you you can't do it. Just figure out the solution. Even if that means banging your head on a wall until the solution oozes out of you.


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OfflineSHROOMSISAY01M
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Registered: 01/22/17
Posts: 3,850
Loc: Virginia, USA
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Re: Grow chamber setup [Re: seagu]
    #26734358 - 06/10/20 12:54 PM (3 years, 8 months ago)

In my opinion, I think you want your humidity sensor on the intake of your air circulation fan. This is where you are mixing your air so you want to read the humidity there to get the best reading.

How big is the room? It is impossible to tell you how many CFM you need for your exhaust fan without this information. CFM stands for cubic feet per minute so we need to know how many cubic feet you have there. I don't know of any mushrooms that need 10 air exchanges an hour. Most will need 3 to 6 air exchanges an hour.

As far as those pond foggers go. I had no luck with them I ran reverse osmosis water with the pond fogger and went through two in 6 months at $300 each. I now use a high-pressure mist that I built from a pressure washer and it is going on 2 years now. No cleaning out tubs and taking apart the pond foggers to clean it. It just works with no maintenance needed.

https://www.shroomery.org/forums/showflat.php/Number/25450089#25450089


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InvisibleBsdgaou

Registered: 02/20/19
Posts: 340
Re: Grow chamber setup [Re: SHROOMSISAY01]
    #26736091 - 06/11/20 06:27 AM (3 years, 8 months ago)

Problem is, I cannot find "big CFM" fan. So I can split grow chamber in two pieces, one under the ground where is steady 15°C and one in the garage where is warmer and I can have oysters there.
I've ordered CO2 meter, but anyway I have to be pretty close to size of fan, I doubt they'll be replace me more than one time.

So what do you guys think about floor and other questions? Let's discuss ideas.


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OfflineSHROOMSISAY01M
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Registered: 01/22/17
Posts: 3,850
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Re: Grow chamber setup [Re: Bsdgaou]
    #26736626 - 06/11/20 11:21 AM (3 years, 8 months ago)

let's start at the beginning how big is your room?


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OfflineSHROOMSISAY01M
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Re: Grow chamber setup [Re: SHROOMSISAY01]
    #26736629 - 06/11/20 11:22 AM (3 years, 8 months ago)

L x W x H


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InvisibleBsdgaou

Registered: 02/20/19
Posts: 340
Re: Grow chamber setup [Re: SHROOMSISAY01]
    #26738208 - 06/11/20 11:14 PM (3 years, 8 months ago)

Yea, let's start at the begining, where is my first post in this thread. I am constructing grow room, so I don't have it yet.


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OfflineSHROOMSISAY01M
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Re: Grow chamber setup [Re: Bsdgaou]
    #26738317 - 06/12/20 12:09 AM (3 years, 8 months ago)

I am not trying to be rude but to try to construct anything you have to have a plan 1st. So figure out how big you want your grow chamber. To give you an Idea I have a 10 x 4 x 7 room (LWH) I can grow at least 120 lbs a week in that space doing one flush and done. No one can give you the info you ask for without knowing how big the room is. The CFM correlates directly with how big the room is obviously. For instance, my room is 280 cubic feet 10 x 4 = 40 x 7 = 280 so to do a complete air exchange if I had a 500 CFM fan it would take roughly 40 seconds.


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InvisibleBsdgaou

Registered: 02/20/19
Posts: 340
Re: Grow chamber setup [Re: SHROOMSISAY01]
    #26738346 - 06/12/20 12:33 AM (3 years, 8 months ago)

Quote:

SHROOMSISAY01 said:
I am not trying to be rude but to try to construct anything you have to have a plan 1st. So figure out how big you want your grow chamber. To give you an Idea I have a 10 x 4 x 7 room (LWH) I can grow at least 120 lbs a week in that space doing one flush and done. No one can give you the info you ask for without knowing how big the room is. The CFM correlates directly with how big the room is obviously. For instance, my room is 280 cubic feet 10 x 4 = 40 x 7 = 280 so to do a complete air exchange if I had a 500 CFM fan it would take roughly 40 seconds.




I am really impressed how little place you need to grow nice amount of mushrooms. I guess I will just copy your design then. I can get 400-500 CFM in my country. Anyway you're exhausting a lot of air, in Stamets book it writes about 10 times per hour, which is once every 6 minutes. Do you have CO2 meter maybe and you tested air? I guess it's below 600-700.


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OfflineSHROOMSISAY01M
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Registered: 01/22/17
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Re: Grow chamber setup [Re: Bsdgaou]
    #26738506 - 06/12/20 02:00 AM (3 years, 8 months ago)

I do not have a co2 meter. Oyster mushrooms will tell you if you are not exhausting enough air. If you start getting long stipes (stems) you're not exhausting enough air. You can cut down on the need to exhaust air by having a circulation fan. Oyster mushrooms benefit from air movement but not blowing directly on the mushrooms. When the air is moving it keeps co2 from building up around the mushrooms. I also like the circulation fan because it mixes the humidified air. I put my humidity controller sensor on the intake of the circulation fan to get a consistent reading. I wrap the sensor in a paint booth filter to stop spores from building up on the sensor. I switch the filter out once a week and wash them out.

Remember the size of my room and how much I can grow is only doing one flush. If I was trying to get 2 or 3 flushes I would not be able to get as many mushrooms because the 2nd and 3rd flush would be taking up space in my room and 2nd and 3 flush harvest is much lower than 1st flush.


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OfflineSHROOMSISAY01M
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Registered: 01/22/17
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Re: Grow chamber setup [Re: SHROOMSISAY01]
    #26738516 - 06/12/20 02:10 AM (3 years, 8 months ago)

To be clear I am not using a 500 cfm fan that was just for an example. The fan I use is 190 cfm but I let it run 24/7. I use high-pressure mist so it is not a problem for me to keep the humidity up.


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