carbon filter

hi again, ive placed my 5 inch carbon filter inside some 10 inch acustic ducting because the sound of the air come out was to loud,(ive got the filter outside of growroom and fan blowing threw it)
any way it has worked and i can almost hear nothing so my question is is it ok to do this?

p.s i can fell the air comeing out of the ducting so its not restricting airfiow

thanks for any help

You want the carbon filter on the inside of the grow room with air being pulled through it first

ther isnt enough head room to do it that way webb107 + ive always done it this way with no problems, but this is the first time ive put the filter inside some ducting, i think it should be ok aslong as the air flow isnt restricted but im after other peoples opinions who may have tryed it or are doing it this way, thanks for answering aswell m8

Air flow WILL be restricted,you just can't tell.
Get a taller grow space,put the filter inside the tent and suck through it (the way it is designed to work) and if you still don't like the blowing noise then buy a silencer.

http://cgi.ebay.co.uk/4-SILENCER-DUCT-EXTRACTOR-FAN-HYDROPONICS-/250462091205?pt=UK_HomeGarden_Garden_PlantsSeedsBulbs_JN&hash=item3a50b437c5

There are a number of reasons to have the filter at the beginning of the line. Not sure of your setup, a lot of times when people don't have enough room inside they put it on the outside of the grow room. One of the main benefits from pulling the air is that you pull in any potential leaks. Currently you are pushing your odor towards the filter so any leaks instantly begin to force air out of them and odor escapes before going through the filter. I do not know if you use a vented light but it is more efficient to pull air across it also as you are not forcing hot air from the fan into the fixture. Really, lights should be contained on their own exhaust system. Intake-->Hood/Cooltube-->Out of the grow space (preferably outside). Then the grow space is vented Intake-->carbon filter-->Out. This keeps neg. pressure in the cabinet allowing for passive intake.
When pulling through a filter the granules are pulled together sealing leaks, when pushed through it separates the materials creating open areas of least resistance.
This has been known to reduce noise also as the fan doesn't have as much resistance to 'push' agianst.

I don't see a problem other than proper airflow with the way you have it now, just keep in mind that you must maintain the space iinnetween the two.

thanks for this info, ive used acoustic ducting and pulled it over the filter sort of like the material cover thats already on only much slacker, the air thats comeing out the end is still strong so dont think its restricting to much, theres about a 3 inch gap all way round, plus the fan is an 8 inch ruck twice as strong as i need, i will keep an eye on it to make sure everything is ok.

p.s if all goes well it works really well so anybody who is useing the same set up as me with the filter outside the room with fan blowing through it if the air blowing through the filter is to loud, give this a try

pazuzu420 said:

There are a number of reasons to have the filter at the beginning of the line. Not sure of your setup, a lot of times when people don't have enough room inside they put it on the outside of the grow room. One of the main benefits from pulling the air is that you pull in any potential leaks. Currently you are pushing your odor towards the filter so any leaks instantly begin to force air out of them and odor escapes before going through the filter. I do not know if you use a vented light but it is more efficient to pull air across it also as you are not forcing hot air from the fan into the fixture. Really, lights should be contained on their own exhaust system. Intake-->Hood/Cooltube-->Out of the grow space (preferably outside). Then the grow space is vented Intake-->carbon filter-->Out. This keeps neg. pressure in the cabinet allowing for passive intake.
When pulling through a filter the granules are pulled together sealing leaks, when pushed through it separates the materials creating open areas of least resistance.
This has been known to reduce noise also as the fan doesn't have as much resistance to 'push' agianst.

I don't see a problem other than proper airflow with the way you have it now, just keep in mind that you must maintain the space iinnetween the two.

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