Suck or Blow

[Guest]

I don't think it really matters a hole hell of alot just as long as you have the cfm to do it. If you are restricted for space then outside of the cab for sure cause who in the fuck wants to lose precious grow space. My hydrofarm 265 cfm blower seems to blow as much as it sucks. Someone needs to get acurate measurements as to how much air go's in and how much goes out of their fans or blowers. Then there is airflow that could be restricted due to inadequate intake size and wheather your intake is passive or active. Just my .02 cents

 

[Blackmelo]

JH151399-OG,
a pc fan is hardly going to be strong enough to push air through a carbon filter.
They are extremely weak as they are, only using 12v and all.

Simple test, put your hand over a good extraction fan. Fan will exert a force and blow your hand away. This shows you the 'force' that the fan can blow through a carbon filter with.

Now do the same on a pc fan. Hand not moving? The fan has got no force to push with!

I really can't see it working.

Lol, you just made me think of some1 trying to use one of those battery operated face fans to run their carbon filter. ROFL.

 

[CalcioErba2004]

well since you mentioned micro grows thats a lot like cabs. My boy pulls from his cab into his filter so i guess thats pushing air into it. He is using an inline fan. PC fans done have much pull but if the scrubber is small enough and your grow is small enough i dont see why you cant try it. Id hook up the filter to the exhuast fan and see what happens. If you suck in a carbon filter wont you get a whole bunch of carbon sucked up into your fan?

 

[Guest]

ive never used a scrubber, as security (odor-wise) at my particular locations, in the past, has never been an issue, but, the air is sucked in through ducting, and exhausted through batting.
and the carbon is enclosed in a metal screening/mesh, inside the can

if memory serves me correct.

i am stoned, with no sleep (as always) and have no experience with it, as ive never done a true cab. grow, or 'microgrow' behind somebodies back, where any of this is really any issue..

its always been at a location with no neighbors, in the general vicinity... or if in a cab its always been left open and just used for reflection

i think i need to up-my-game

LOL

ps- a pc fan, as we know them, is in no way powerful enough to push air through a carbon filter, but, i have considered a 6" inline fan hooked up to a section of ducting 12" long with layers of carbon filtering material from the pet store, ya know, the fluffy stuff...and making a sort of 'inline' carbon scubber...but the idea is just so cheesy i never bothered trying....

PC fans are good for rustling the foliage of starts in the nursery, or cooling your hard drive..that's all i can think of using them for at least

 

[Jnugg]

With a pc fan you have only so little airflow and once that pc fan has something to knock the airflow further down (like a carbon filter) it will be completely in efficient.Either squirell cage blower (Dayton) or inlines (vortex,can-fan,eco plus etc etc.) are meant to be connected to carbon filters especially the inlines becuase they move so much air at high velocitysand can withstand backpressure.

Inline is the only way to go buddy,that pc fan won't do shit for you if connected to a scrubber,so stop talking shit to those tyring to help your lame under 18 still living with mom and dad ass.

 

[SinnerCity]

In my own experience they work much better sucking.
I use 140mm 150cfm 24v pabst axial fans pulling air through the diy carbon filters in my rubbermaid mother bins and they work just fine.
Check out ambre's post on her rubbermaid box , Just substitute your axial fan for the one she used.
http://www.icmag.com/ic/showthread.php?t=16836
that's the best type of carbon scrubber for axial fans IMHO as it does'nt require the suction like a can filter to pull air over the thinner single layer of carbon.
For the "Can" type filters you have to make them alot smaller and use a thinner layer of carbon if you are gonna use a pc/axial fan. centrifuge and squirrel cage fans work best on "Can" Style filters.
If you want a cheap alternative to a squirrel cage Dayton that works great check out the stanley Blower fan at Ace or Wally World.
http://www.acehardware.com/sm-stanley-and-reg-blower-fan--pi-1747223.html
I have that sucking through a DIY "Sun Scrubber" can type carbon filter in my 400watt cab and it works sweet.
best regards
SC

best regards
SC

 

[JH151399-OG]

Inline is the only way to go buddy,that pc fan won't do shit for you if connected to a scrubber,so stop talking shit to those tyring to help your lame under 18 still living with mom and dad ass.

I am of age, going to college (with a full scholarship, thank you) and obviously am not living with either parent.

Lame... ok, I might give you that one.

Just so you know, I'm not going to be going with your traditional Carbon Filter, so it wouldnt matter which fans already come with connectors, etc. etc.

The problem with using a can-fan or dayton in my particular situation is I will be growing in rubbermaid tubs, and a huge ass 300 CFM inline would be waaay overkill. Don't you think?

But I fail to see where the responses I was originally given could even be considered "helpful". Any literate person would be able to see that, "buddy".


And to all those who have subsequently helped, I appreciate it.

 

[Jnugg]

Everone has already told you that PC fans are worthless when used with a carbon filter (of any kind).There are 4" inline centrifugals that re 4" and exhuast 140-170cfm and they can be wired to a solid state speed controller which will let you slow the fan down to suit your grow,the slower the fan the less noise it creates.

I still don't understand though why a micro grow in a rubbermaid,whenyou could atleast build a 2' x2' x 3 or 4' tall cab or base cabinet and slap a 175-250 HPS in there or some CFL's.

To be honest you will end up spending more money on your grow (lights,rubber,aid,fertilizers,growing medium,ph testers,fans,carbon filter) then your grow can produce

In other words negative results,all that money for a what you could easily get for $50 on the streets.

 

[SinnerCity]

Jnugg, They are not worthless.
they work quite well when applied properly.
sure , a 50 cfm one wont do squat, but a 130 to 150 cfm one works just fine for small scrubbers on small grows.
Some people thoroughly enjoy just growing for growing's sake and not to produce a cash crop .
best regards
SC

 

[Guest]

for what its worth,

i grow for hobby - 1 plant at a time, 2 tops hehe

and i couldnt agree more with this

I still don't understand though why a micro grow in a rubbermaid,whenyou could atleast build a 2' x2' x 3 or 4' tall cab or base cabinet and slap a 175-250 HPS in there or some CFL's.

To be honest you will end up spending more money on your grow (lights,rubber,aid,fertilizers,growing medium,ph testers,fans,carbon filter) then your grow can produce

In other words negative results,all that money for a what you could easily get for $50 on the streets.

id use it in my sig but thats too long for my taste
condense that to 1 sentence for me Jnugg

 

[Jnugg]

SinnerCity,I wasn't trying to say anything about a cash crop,where in my replys did I mention anything of a cash crop?You sure as hell ain't getting a cash crop from a 250w HID!

I even talked about building a small cab.I think it is pointless to spend money to grow weed if you're not even getting that much weed out of the setup.

If I spend $300 to grow weed I want that $300 back in weed that I payed to produce.Wouldn't you?Hell if I paid $50 to grow weed I would want that $50 back in weed.The main goal to accomplish I think is to get more money in weed than money you put in and also to keep yourself supplied.Could you imagine with the way laws are someone going before the judge in court and facing 10 years in jail saying..'Uh yes,your honor...Uhm,I was just growing to grow,I wasn't going to smoke it or sell it,just growing to grow your honor".

They would either get luaghed at or the judge would just be like yeah....right!

If your going to grow in this day and age you should atleast make it worth it and keep yourself supplied.

 

[SinnerCity]

It cost maybe, 100 bucks to setup my 55gallon rubbermaid with over 300 watts of cfl's and i'm quite sure it produces more than $300.00 worth of weed haha

 

[igotpron]

http://www.herbach.com/Merchant2/merchant.mv?Screen=PROD&Store_Code=HAR&Product_Code=TM03FAN4710

here these are cheap and they move a good amount of air, should work for you application and there 110v so no need for a transformer these things are a good bang for the buck

 

[NightFire]

There was a thread on OG that went through this. Pulling was generally considered a more optimal way of doing things, as the air was (mostly) pulled evenly through the carbon, pushing air through casued the air to go out mostly near the end of the scrubber.

I push through mine, because of space issues. If you use a version of SiS's can scrubber you can use one of the Home Depot inline fans also, but a PC fan will work pulling through one of those pretty well too.

A PC fan can work if it's powerful enough, get a Sunon 120mm or similar. Mine will blow a full bottle of oxycodone (120 tabs) off the other side of my desk, that's after blowing down through the heatsink.

I would pull through with a PC fan though, they have tendencies to allow air to escape behind them if there is to much pressure in front of them, they don't usually pull air back from the front though, not much anyway.

 

[JH151399-OG]

Everone has already told you that PC fans are worthless when used with a carbon filter (of any kind).There are 4" inline centrifugals that re 4" and exhuast 140-170cfm and they can be wired to a solid state speed controller which will let you slow the fan down to suit your grow,the slower the fan the less noise it creates.

I still don't understand though why a micro grow in a rubbermaid,whenyou could atleast build a 2' x2' x 3 or 4' tall cab or base cabinet and slap a 175-250 HPS in there or some CFL's.

To be honest you will end up spending more money on your grow (lights,rubber,aid,fertilizers,growing medium,ph testers,fans,carbon filter) then your grow can produce

In other words negative results,all that money for a what you could easily get for $50 on the streets.

$50? You're telling me you realistically think that one is only going to pull an 1/8 from two rubbermaids stacked together? You're shitting me, right?

The total cost for a rubbermaid tub setup may cost around $150. MAYBE. You can easily pull two ounces, maybe three per set-up. An ounce of, say, Rhino goes for ~$300+. Let's say you only get two ozs. You've saved yourself $450. Yeah, that's negative results.

jnugg, Even if you don't agree, which you don't have to, just say "I don't agree, but whatever." Instead, you are making absurd remarks that have no foundation in reality. The ONLY thing you've said that is *somewhat* useful is to bring up the 4" fan wired to a solid state converter... I hadn't thought of that, and so I thank you for it.


Now, contemplate this quote before you reply:

"Wise men speak when they have something to say, Fools speak when they have to say something."

 

[BubbleBoi]

Well, took me a second to remember wtf this thread was about cause of the little flame war... But, I've been looking into this as well and it just depends on the type of fan like a few others have said. Inline fans usually do better pushing, squirrel fans do better pulling. This is general effeciency and how the fans are designed. PC fans and axial fans aren't great for pushing or pulling through ducts either one, not saying you can't pull it off but these fans aren't designed for this type of use. They're designed mainly for circulating air and although you might have a 120cfm pc fan, if you hook that up to some ducts and try pushing or pulling either one through a scrubber... probably won't even get 60cfm from it just cause these fans aren't designed for this type of air movement.

As far as a rubbermaid setup goes, you're right... don't think you'd need a very big scrubber or fan for that area, why not go with the single layer and an axial fan like SinnerCity sent the link to? http://www.icmag.com/ic/showthread.php?t=16836 looks like it'd be sufficient, and its cheap enough to at least give a shot imo.

Can't we all just get along? Being growers, I think we all understand and aim for effeciency. Arguing and calling people names is pointless, immature, and far from effecient. The time and effort it takes to post an argument could have been spent packing a bowl, reading something usefull, or posting something usefull. Not to mention arguments just make everyone else have to waste time reading through them when we come over the thread. We're all here to relax, enjoy ourselves, and gain/share knowledge.

 

[Guest423]

you do whatever method your fan was made for, i have a couple that are made to push and a couple that are made to pull....you can feel the air with your hand to see if it pushes or pulls better through the duct work.