Wow great thread, I even read all 43 pages, thank you all for the great info.
I am thinking of buying a carbon filter with centrifugal fan and silencer, I don't want any smell at all, I can't afford to be busted down under, harsh rules for indoor growing. The only thing I am worried about is noise and smell. I have grown outdoors for the last couple of years but now its time for some indoor action. I will have to get around to finding my outdoor pics and putting them up.
My questions are
1. Will the centrifugal fan be loud with a silencer and will the 6" vent fans be loud for intake?
2. I plan on growing in the garage and it is quite cool so i need to be careful for mould, I plan on ducting the filtered air under the house but I wonder if the neighbours will smell it after it has been through the carbon fiilter or if I am just being too cautious, paranoid?
I plan on using a grow tent and like a couple in here using a 600hps in a 1.4 x 1.4 x 2.0 m tent with 3-4 plants every 3 weeks, but vegging them outside and saving power only for flowering @ 12/12 until I can get a vegging light etc.
thanks for any help or input.