Frogger
Active member
seems like a cool ideaMigrowGrower said:Ok heres my latest discovery..it relates to a carbon filter experiment I ran before but thought was unsuccessful. I recently got gifted some Jamaican Sunshine from a friend as most of you probably know...this little plant is only 18 days from seed but stinks out my whole growroom. I tried to fix this odour problem by duct taping a piece of carbon filter material over my extract in my mum/clone box which was previously unfiltered...this kept the smell at bay for only a few days..yesterday morning the smell had returned. I done nothing.
In my flowerbox temps can get quite high..I keep them only a few degrees c over ideal by leaving the door in the flowerbox open at night when the lights are on...open enough so there is still negative pressure in the box from my 79cfm extract..hanging in the doorway is what I call my Bullballs filter pictured below. I call it this because it looks like a bulls balls lol.
It's just a toe from a pair of tights filled with granulated active carbon for filtering alcohol. Anyway last night I done my usual routine of opening the flowerbox door shortly after lights on and placing my large desktop oscillating fan blowing through the gap in the door. When I returned to the room the box is kept in about 3 hours later I couldn't smell the JS at all, in fact I smelled nothing. I was a bit confused and had no idea where the smell had gone....until I noticed the bullball s filter swaying in the breeze of the oscillating fan. The only explanation I could think of was that the air in the room the boxes are kept in was getting blown through the bullballs of active carbon and was getting scrubbed and that when the flowerbox was closed during the lights out period the air was no longer being filtered through the bullballs so the smell would return. I put my theory to the test this morning..when I closed the flowerbox door 15 mins before lights out as usual I removed the bullballs and attached it to the oscillating fan so it hangs in front directly in the airflow. I just left this running in the room where the boxes are kept and today there has been absolutely no smell from the boxes whatsoever....even though the "filter" is kept outside of the boxes, it is scrubbing the air in the room the boxes are kept in...this is neat...no more building crappy D.I.Y. filters for me. The important thing about all this is that the bag of active carbon MUST be directly in quite a strong airflow for it to be effective...the airflow must be strong so it can circulate all the air in the room...I just keep my oscillator on the floor in front of the two boxes. The reason the experiment failed for me before is that the
bullballs wasn't in the airflow of the room... all the air doesn't need to be pushed directly through the filter because the carbon attracts the odour molecules with its huge surface area...I don't remember the exact science but it's something like that..The main thing is..it works and works very very well. Also this bag of active carbon has been hanging in my flowerbox for 3 months and still works great.. only maybe 500g too. It would be great if someone would run a trial with this to confirm my findings..
MG
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