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Offline3963
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Registered: 02/21/24
Posts: 34
Last seen: 11 days, 9 hours
Monotub air exchange thoughts, theories with a computer fan
    #28669110 - 02/21/24 03:30 AM (4 months, 3 days ago)

Hey. I've created an account for this as I've not found concrete discussion on this forum.

I'm a busy man, and am unable to constantly check on my cultivations, which I keep away from my place of residence. Sometimes I am unable to check in for days at a time.

I've thought about airing a monotub, I've thought about polyfill etc. Say I leave my monotub in a basement, with relatively high humidity, and ~20'C conditions.

I'm considering setting an 80mm Noctua fan with 43.9 cubic metres of airflow per hour in the box, set on exhaust, with polyfill or micropore tape as an intake. I'd run the fan intermittently to exhaust CO2 and bring in fresh air.

I have two tubs, each with 65 litres of volume. I could connect both tubs together using PVC piping, tasking the single fan with a total of 130 litres of volume. Obviously the substrate would take up some of this volume, between 5-8 litres.

Fan details: Noctua NF-A8 PWM with 55,5 m³/h airflow out of the box, airflow with adapter 43,9 m³/h; Static pressure 2,37 mm H₂O, Static pressure with adapter 1,54 mm H₂O

What would be the considerations of this project? Would this even be necessary if I have air filters, would the static pressure move air plenty on its own?

edit: Would setting a fan just near the monotub be plenty enough to facilitate air exchange?

Edited by 3963 (02/21/24 03:31 AM)

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OfflineDERRAYLD
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Registered: 05/13/02
Posts: 10,505
Loc: South Africa
Last seen: 8 hours, 14 minutes
Trusted Cultivator
Re: Monotub air exchange thoughts, theories with a computer fan [Re: 3963]
    #28669126 - 02/21/24 04:05 AM (4 months, 3 days ago)

Exchange the air in your grow space not the tubs, tubs will function with passive fae.

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OfflineScrewup
Googles your dumb questions
Trans-female

Registered: 01/27/22
Posts: 6,340
Last seen: 3 months, 21 days
Re: Monotub air exchange thoughts, theories with a computer fan [Re: DERRAYLD]
    #28669131 - 02/21/24 04:12 AM (4 months, 3 days ago)

Mfw I wrote a ten paragraph essay on my problem but the solution is two sentences worth of Information.

:gains:


So are you saying just throw a box or standing fan in there  OR that there should be no issue even when in a basement?


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Edited by Screwup (02/21/24 04:13 AM)

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OfflineYahra
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Registered: 03/06/23
Posts: 2,627
Loc: Earth
Last seen: 3 hours, 44 minutes
Re: Monotub air exchange thoughts, theories with a computer fan [Re: Screwup]
    #28669134 - 02/21/24 04:19 AM (4 months, 3 days ago)

A fan will fuck things up.

Fresh air exchange should be passive.

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Offline3963
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Registered: 02/21/24
Posts: 34
Last seen: 11 days, 9 hours
Re: Monotub air exchange thoughts, theories with a computer fan [Re: 3963]
    #28669136 - 02/21/24 04:23 AM (4 months, 3 days ago)

Thank you for the replies. I am still considering adding a small fan to help circulate air in the grow room, rather than directly in the box. The room is a small 4sqm walled space in a larger room.

I am measuring temperatures and humidity currently, and comparing these with a ventilated grow room.

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OfflineDERRAYLD
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Registered: 05/13/02
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Re: Monotub air exchange thoughts, theories with a computer fan [Re: 3963] * 1
    #28669142 - 02/21/24 04:36 AM (4 months, 3 days ago)

Add a fan to circulate the basement air or it will become stale.

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OfflineCopasetic Panda
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Registered: 10/02/23
Posts: 51
Last seen: 1 month, 30 days
Re: Monotub air exchange thoughts, theories with a computer fan [Re: 3963]
    #28670096 - 02/21/24 05:40 PM (4 months, 3 days ago)

Let them breathe...

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