Wow. That sounds a bit long. I change my carbon at 6-8mo and I use top quality acid washed coco charcoal. I do this because I don't want people smelling whats going on in my room, and after 6-8 or so you can start to smell 'earth'. Def not the same smell that is in the tent, at all, but I don't want people to question why my space smells like 'earth'.How long do the Phat or Phresh filters last? The Can 33 lasts 14 months
I've heard Can is the best too. I'm shocked you get so many months out of it. The fact of the matter is that it doesn't use special carbon, and only has XX weight and thus XX inches of bed. Definitely get someone else to smell it out lol. FWIW my big filter has been running for 15mo also and all you can smell is 'dirt'. Honestly we aren't sure if its from the filter/room seepage, or from the building. There is no vapor barrier under the slab, and we suspect that may be why it smells so dirt like when its moist outside.I was told they (Can) are the best, and was told by two different competing grow shops that they last 14 months-yes depending on how you use them. My Can 33 is going on 15 months, gonna have to get my brother over here and see what he can smell lol
Is that a skylight?