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carbon filter set up in my grow room question?

baddagger

Member
hey guys I was just wondering about something, im going to be setting up my flower room to start my first flower but I was wondering about the carbon filter. I have two 1000 hps that each have a vented hood .. and two 400 inline fans. now should I hook up 2 400 carbon filters on to each light then to a inline fan then out?

or should I have one 750 or 950 that is hooked up to a Y connector then breaks off to each hood then each hood to its own inline fan?
 
J

JimmyRow

I would use the Y and a bigger filter than you think you need. I'm using a 8 x 39 phresh and have no issues pushing 720 cfm. No smell. Maybe consider using one fan on the lights and one exhausting the room, if you want to clean the air from the lights use the y, I don't, and my fan/filter pulls it all in and cleans it up.
Best of luck.
 
T

trichster

whats the temp of air feeding the room? if its cool enough you might get away with but probably not running 1 of your fans to just cool the lights and the other hooked up to carbon filter exhausting hot air. I wouldnt run a Y connector. If i was you id buy 8'' fan and run the hoods inline with filter first, cool and scrub at same time. Carbon filter wise id go with a can100, probably get away with smaller filter but bigger is better when it comes to filters and smell.
 

baddagger

Member
I was going to go with phresh filter... cause I have a active air carbon filter and its just not doing the job in my veg room.. got 12 plants going on in my 5x9x7 foot room and my hallway smells like pot really bad.. so figured im just going to put phresh filters in my flower room.. heard they were the best brand to go with
 
T

trichster

phresh are great. light weight and best carbon type available. I only get about 12 months out of one though. The Can series filters seems to last 6 months longer. I believe this is because the Cans are almost 2x thicker then the Phresh's are with carbon. Ive used both and they both have something better over the other.
 

baddagger

Member
well I would like the longest usage but I would rather have best air filtering I can get over length of usage if the filtering is not as good
 
J

JimmyRow

Can v. Phresh. Is weight, and price.
Can carries a higher carbon weight, so they are heavier and more expensive, but last longer. I have found that a lower cfm than the filter is rated than that can extend the life, and speed controllers, allow me to constantly exhaust the flower room slowly without stinking, very quietly during lights off. My 8" fan w/a muffler is still pretty loud at full boar.

That being said. I personally use phresh, but I also hang my shit
 

Resistance

New member
I'd run scrubber-hood-fan-hood-fan-exhaust. All in series for maximum efficiency. But you didn't mention anything about your particular set up.
 

Blazini

New member
I'd run scrubber-hood-fan-hood-fan-exhaust. All in series for maximum efficiency. But you didn't mention anything about your particular set up.

Why is it better to create a negative air pressure by using your scrubber as an intake within your grow area? Just curious. Always had my scrubber outside of the room.
 

intotheunknown

Active member
Veteran
the filter is most effective right at the source of the stink.

lots of stink has to travel down/up/twist/turns throughout your ducting to then be filtered as it is exhausted... its far more effective the opposite way.

also far less chance of a stink leak throughout your duct work. shortens the chances if you will.

negative pressure (vacuum) also ensures no stink gets pushed back out by positive pressure. stink is constantly being filtered and moved through passive intakes in, and out.

OP definitely Y it off and overkill the scrubber.
1ks put out a lot of heat, depending on your space's size, ambient temps, etc. you may need more than 400cfm per 1k.

for an "efficient" (passive intake and duct size factoring) stinkless setup go with something like this...

passive intake>>>grow space>>>scrubber>>>hood>>>fan>>>dump (negative pressure)
 
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