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SHROOMSISAY01
Mr. Shrooms


Registered: 01/22/17
Posts: 3,850
Loc: Virginia, USA
Last seen: 4 days, 22 hours
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Re: Starting a School Mushroom Farm [Re: Shikamaru]
#27099642 - 12/20/20 04:43 PM (3 years, 1 month ago) |
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Use that vent for your exhaust air and just have fresh air come in from another room. Fresh air does not need to come from outside.
I would build a wall and not use plastic. Then put a tee on the exhaust and run to each room. Just have your fans cut on at different times to exhaust the rooms.
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SHROOMSISAY01
Mr. Shrooms


Registered: 01/22/17
Posts: 3,850
Loc: Virginia, USA
Last seen: 4 days, 22 hours
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The intake air is just coming from another room.
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Shikamaru
Jounin



Registered: 06/21/18
Posts: 87
Loc: Chicago
Last seen: 57 minutes, 58 seconds
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Thank you very much for that feedback! That is very good to know that I don't need to directly use outside air, but can use air from another room. I will follow your advice and vent the air out of that duct and pump in air from another, adjacent room and thank you for the design as well.
What would be best idea to build a wall? Would you recommend something like drywall?
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deadmandave
Slime


Registered: 02/16/10 
Posts: 3,367
Loc:
Last seen: 4 hours, 5 minutes
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Re: Starting a School Mushroom Farm [Re: Shikamaru]
#27100009 - 12/20/20 09:37 PM (3 years, 1 month ago) |
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A good choice in my opinion is to cover the wall framing with Frp or something similar.
A different option is foam insulation boards. But anything non reactive to water, would do.
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SHROOMSISAY01
Mr. Shrooms


Registered: 01/22/17
Posts: 3,850
Loc: Virginia, USA
Last seen: 4 days, 22 hours
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Re: Starting a School Mushroom Farm [Re: deadmandave]
#27100098 - 12/20/20 10:58 PM (3 years, 1 month ago) |
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This is what I used...
https://www.lowes.com/pd/47-75-in-x-7-98-ft-Smooth-Brown-Hardboard-Wall-Panel/1002959194?cm_mmc=shp-_-c-_-prd-_-mlw-_-google-_-lia-_-128-_-interiorwallpanels-_-1002959194-_-0&placeholder=null&ds_rl=1286981&gclid=Cj0KCQiAifz-BRDjARIsAEElyGK0WE1zH-TtojvmJAgzCEM5pEtq5NAad7J-j0oXT2CbSC6cH7PdrtgaAqoKEALw_wcB&gclsrc=aw.ds
I then sealed the seams with duct tape and painted the wall with this...

It has held up for over 3 years and once a month I fill up a garden sprayer with 10% bleach and spray down everything. If you have a drain in the floor and you will get water on the floor I would buy a tube of 100% silicone caulking and a little mineral spirits and paint 3 or 4 inches up from the bottom of the board on both sides before you put it up no matter what type of paneling you use. That way it will be protected against water fairly well just in case.
Just thin the silicone with the mineral spirits until it is thin enough to paint it on.
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Shikamaru
Jounin



Registered: 06/21/18
Posts: 87
Loc: Chicago
Last seen: 57 minutes, 58 seconds
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Thank your for the suggestions of Frp/hardwood wall panel. The hardwood wall panel is cheap which is great and I belive there is some metal framing around the school. I'll check on that tomorrow.
Will make use of the drylok to waterproof the walls and that's a great pro tip about painting both sides of panels for waterproofing!
This advice is really helping me round plans together. Will sketch out my plan and share on here
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Shikamaru
Jounin



Registered: 06/21/18
Posts: 87
Loc: Chicago
Last seen: 57 minutes, 58 seconds
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Re: Starting a School Mushroom Farm [Re: Shikamaru] 1
#27125098 - 01/04/21 01:32 AM (3 years, 1 month ago) |
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Happy New Years everyone! I spent this weekend building out my grow tent. I still have to fine tune and dial in the tent, but it is currently operational with some lions mane bags fruiting.
  
The above pictures show the space I built the tent in before I got started. There was an old gas line that had fallen and I reattached it to the ceiling. My plan was to use 6 milliliter thick black plastic to form the outer shell of the grow tent. The wood pieces you see are there to form two walls of plastic, and then the rest of the plastic will be lined directly against the walls, ceiling, and floor. The two walls I needed to make are the front wall and on the left side of the room where their is a pipe leading to the roof that I didn't want to cover. I installed a floor door stop shown in third picture to prevent the wooden door to the room from opening into the grow tent.
   
The first picture above shows the start of installing the black plastic. I started with layering it against the back wall. I used gorilla tape initially to hold it in place and then I nailed the plastic to the wallby placing a piece of gorilla tape over the area I planned to nail and drove the nail through the tape to help prevent plastic from tearing. The next pic shows me staging up to create the front flowing wall of plastic. I measured out the length and then nailed the plastic to the wood beam. I made sure to leave some overhang on top of the wood so that I would be able to tape it to the plastic I will eventually attach to ceiling. The third picture shows me installing the wooden beam to the ceiling. I was able to prop one end on the old gas line and then I used another wooden beam to hold the structure in place. Would have been easier with some help at this point, but I built the tent solo. I used four inch construction screws to attach the beam to the ceiling. I over engineered it by placing a lot of screws into it to ensure stability. The fourth pic shows the beam with the flowing plastic successfully attached to the ceiling. You can see the overhang of plastic at the top, which is to ensure I will be able to create an airtight, enclosed tent.
 
The two pics above show the plastic being attached to the ceiling. There is an existing fluorescent light system in the grow space so I attached the ceiling plastic around the light in order to make use of it. I eventually plan to encase the light with clear plastic to keep humidity out.
   
The above four pics show the space after it has been fully encased in plastic. I used black and white gorilla tape to combine the various pieces of plastic that were cut to size. I went crazy with the tape at this stage since the black plastic's job is to form the shape of the space and be air tight. It is going to be covered with a layer of panda film so looks don't matter at this stage. I used a zipwall that I purchased from Home Depot in order to create a zipper entrance to the space which can be seen in third picture. The fourth pic gives a full view of tent at this stage in construction from the outside.
  
The first pic above shows the beginning of me installing the panda film. The panda film was easier to install than the black plastic because it was layered on top of the black plastic. I used tape to hold it in place initially and then nailed the panda film to the wall in a few places to keep it up. I used the same process as the black plastic by placing tape on the area I planned to nail to keep the panda film from tearing. I used the white gorilla tape exclusively for the inside with the panda film. I also used the tape to attach the pieces of panda film together. The next two pictures show the finished product after I attached the panda film to the entire interior of the space. I attached an additional zipwall zipper to the inside panda film so there are two zippers to go through to fully enter the grow space.
 
The first piece of equipment that I installed was the humidification system. I'm using a twelve disc ultrasonic humidifier for this tent. I built out my humidifier tote first which didn't take too long. I drilled one hole for the inline fan to blow the humidity and then another hole which I attached ducting where the humidity is pumped through. The ducting is held temporarily by gorilla tape in the picture above. That is one of my fine tuning areas that I will change. The second picture shows the ducting in a closeup view. The ducting coming directly out of the ceiling is my fresh air intake duct while the other carries the humidity.
 
The above two pictures show the fresh air intake system. The tent is positive pressurized so I have an inline fan attached to a carbon filter pushing air into the grow tent which is shown in the first pic. I was able to attach the air intake system on the wooden beam that is holding the front flowing wall of plastic. There is a nice cavity above the wooden beam in the middle so I placed the filter and fan right on top of the beam and screwed it into place. I then ran ducting down onto the tent from above. The second pic shoes the ducting entering the top of the grow tent. I cut a hole into the plastic slightly too small for the duct. I then pushed the duct through the whole which made a snug fit. I took gorilla taped and taped where the plastic and ducting meet to make an airtight seal.
   
The first pic above show the grow room after adding some shelving and lions mane sawdust blocks. The second picture also shows the space after I turned on the humidifier tote. The 12 disc humidifier pumps out a looot of humidity. When I left, I was reading 91% humidity in the room. The last two closeup pictures show the lion mane blocks after I cut them in different ways to initiate fruiting. I'm experimenting with many different ways to fruit the lions mane to see what works best. Some of the blocks starting fruiting inside the bag because grow room wasn't ready yet so I just cut the tops of the bags which had the thickest fruit. I then cut slots or poked hole on the top and sides of the bags in different ways to see what I like best.

The above pic shows the tent at its current state of completion. You can see the air intake system up top and the room inflated a bit due to the air flowing in. I still have to install an inline exhaust fan to the room. I need to buy more ducting so I will finish that up tomorrow. I also have more tweaks to do like replacing the tape holding the ducting inside the tent and dialing in my conditions. I'm very happy with how it has turned out so far. I will post another update after I get the tent finalized. Please let me know if you have any questions about how I put this together and/or if you have any suggestions. I learned a lot from this site and hope this write up helps someone else out there
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SHROOMSISAY01
Mr. Shrooms


Registered: 01/22/17
Posts: 3,850
Loc: Virginia, USA
Last seen: 4 days, 22 hours
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Re: Starting a School Mushroom Farm [Re: Shikamaru]
#27125137 - 01/04/21 02:43 AM (3 years, 1 month ago) |
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Good job so far but I am confused. Why do you have a carbon filter? Carbon filters are to take odor out of the air. Where are you running your exhaust and how are you getting it out of the building? Just so you know what you are using as duct is more than likely going to cause you some trouble you are going to get water build up in it.
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Shikamaru
Jounin



Registered: 06/21/18
Posts: 87
Loc: Chicago
Last seen: 57 minutes, 58 seconds
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You are totally right about the carbon filter haha. I read that I should install a filter to the the inline fan before pumping air into the room and I bought the carbon filter spur of the moment and found out later it is primarily for odor reduction. I figured I would just install it to at least partially filter the air before pumping in. Do you have a recommended filter for the inline fan? I will add that to my fine tuning list. I see PVC is commonly used for ducting. I will replace the metal ducting with pvc pipe since that seems like it would be better for water build up issues.
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deadmandave
Slime


Registered: 02/16/10 
Posts: 3,367
Loc:
Last seen: 4 hours, 5 minutes
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Re: Starting a School Mushroom Farm [Re: Shikamaru]
#27125985 - 01/04/21 11:52 AM (3 years, 1 month ago) |
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Staying busy I see. Looks good.
You can use furnace filter material. Maybe you could wrap it around the carbon filter. But what I did is make a box with a filter on one side and the fan ducted into the other.
how are you exhausting the fruiting room air?
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Shikamaru
Jounin



Registered: 06/21/18
Posts: 87
Loc: Chicago
Last seen: 57 minutes, 58 seconds
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Re: Starting a School Mushroom Farm [Re: deadmandave]
#27126131 - 01/04/21 12:55 PM (3 years, 1 month ago) |
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Appreciate it deadmandave, that is a good idea regarding the filter box. That is same principle as the blower fan for the flowhood, which makes a lot of sense. I'm thinking I might just wrap the carbon filter with another filter material like you suggested. It is already wrapped in a pre filter so I'll just wrap that in a furnace filter and that should be good. The carbon filter will trap any odors that escape into the room area and I already bought it so might as well put it to use.
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SHROOMSISAY01
Mr. Shrooms


Registered: 01/22/17
Posts: 3,850
Loc: Virginia, USA
Last seen: 4 days, 22 hours
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Re: Starting a School Mushroom Farm [Re: Shikamaru]
#27127203 - 01/04/21 10:15 PM (3 years, 1 month ago) |
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Quote:
Shikamaru said: You are totally right about the carbon filter haha. I read that I should install a filter to the the inline fan before pumping air into the room and I bought the carbon filter spur of the moment and found out later it is primarily for odor reduction. I figured I would just install it to at least partially filter the air before pumping in. Do you have a recommended filter for the inline fan? I will add that to my fine tuning list. I see PVC is commonly used for ducting. I will replace the metal ducting with pvc pipe since that seems like it would be better for water build up issues.
PVC is what I use. If you use PVC you will more than likely have to cut a 1" piece of PVC and cut it along the 1 inch so you can fit it in the pipe this will make it fit your fan much better.
I don't use a filter I don't think it is needed. I also don't blow air into my room. Positive pressure will cause you to have a bunch of spores outside of your tent and that will cause your filter to clog up sooner than it should. Not my choice but I would use passive air you will cut down on the need for a fan that way and you can use it as a circulation fan instead because you are going to need a circulation fan also. But that is how I would do it to each their own. Positive pressure should be used for your lab. but it looks like you have a big enough space so you can separate the lab from the fruiting tent to keep the positive air from the fruiting room from blowing into your lab.
How are you going to get your exhaust outside? You must have an exhaust fan otherwise that room will fill up with co2 and you will not grow good shrooms.
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golden-student
Stranger
Registered: 04/25/19
Posts: 56
Last seen: 2 years, 7 months
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Following.
I will enjoy watching this project unfold. Good luck!
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Shikamaru
Jounin



Registered: 06/21/18
Posts: 87
Loc: Chicago
Last seen: 57 minutes, 58 seconds
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I'm going to definitely use that tip about the PVC SHROOMISSAY01. The ducting I have now will be coming down soon, the PVC will be more secure and stable.
Luckily, the room I am using is on 3rd floor of building and it is in an old laundry room that has an exhaust that leads to the roof. I have a duct connected to an inline fan that exhausts air through this duct. I am going to do an update soon showing how that is hooked up.
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Shikamaru
Jounin



Registered: 06/21/18
Posts: 87
Loc: Chicago
Last seen: 57 minutes, 58 seconds
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Re: Starting a School Mushroom Farm [Re: Shikamaru] 1
#27147752 - 01/14/21 01:14 PM (3 years, 1 month ago) |
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I'm still tweaking my grow tent but I have some lion's mane growing inside simultaneously. I am doing R&D in my tent for now so I am fruiting my lion' s mane bags in different ways to see what happens. I cut the bag completely off the top of some of them, cut slits in some, holes in other, some had one puncture, other had multiple punctures and etc. It's cool to see how the lion's mane grows under different parameters. All the Lion's Mane was grown using Masters Mix which is 50% Hardwood pellets and 50% soy hull pellets which are combined, hydrated, and sterilized.
  
The pictures above show a bag that I top fruited. I let it keep going to see how tall it would get and it didn't disappoint. The fruit layer is much taller than the sawdust layer. The tall sides of the bag made a high CO2 environment that the mushrooms were trying to escape from for fresh air. I've already eaten some and they taste great. My plan is to dehydrate and encapsulate the ones I top fruited as well as eat myself 
 
The above two pictures show a bag that I top fruited by only cutting a portion of the bag off the top. The only significant fruit is on the side of the bag with the hole as it reaches for fresh air. Lion's mane can form some interesting shapes when it has to reach out to breathe.
  
The above pics show some of the fruit that I am top fruiting more traditionally. These bags I cut a small slit on top, evacuated the air, folded the flaps of bag over it self and turned it upside down. I cut slits into some of them and cut holes into others. The ones above are top fruited, in different configurations.
     
The above pics show more that I made slits/holes on the side which is most traditional methods. They are getting big and looking good so far. They feel very meaty and I plan to harvest before spines elongate too long. Some of the them will be harvested within 24 hours from now.
This is my first time growing Lion's Mane and am very happy with results so far! Will be growing more and trying other species to grow alongside the Lion's mane. Going to update in few days on status of the tent itself after I finish a few additions.
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Akuma7
Shogun

Registered: 12/07/20
Posts: 3
Loc: Indiana, Michigan, Illino...
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Re: Starting a School Mushroom Farm [Re: Shikamaru]
#27148326 - 01/14/21 06:18 PM (3 years, 1 month ago) |
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That is some beautiful lion's Mane fruiting Shikamaru
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