The Best Diy Ez Walmart Carbon Filter for Micro Grows Zen Style

peteman990 · Jun 17, 2009

THCcraving said:
amazing job, I'm going to make this next time I got to go shopping. =o

Hey, sorry if i'm reviving an old thread last post was last month. I got everything shown to make this thing at WalMart, but they only had one size "pencil cup"? They fit inside one another but are the same size, will this still work or should I search far and wide at WalMarts for a smaller/larger pencil cup? I would think it would still work, but who knows, this thing COULD be more complicated than it looks.. something special about the sizes that makes it work just right. Eh?

Crownmesire · Jun 17, 2009

peteman990 said:
Hey, sorry if i'm reviving an old thread last post was last month. I got everything shown to make this thing at WalMart, but they only had one size "pencil cup"? They fit inside one another but are the same size, will this still work or should I search far and wide at WalMarts for a smaller/larger pencil cup? I would think it would still work, but who knows, this thing COULD be more complicated than it looks.. something special about the sizes that makes it work just right. Eh?

One has to be bigger than the other, for this to work the activated carbon has to sorround the smaller diameter pencil cup. Otherwise the scrubber will not be efficient

Skoad · Jun 19, 2009

This is amazing. I came to the DIY section to find a different carbon filter I saw but clicked this and looks great, very simple, and definitely cheapest method ive seen.

Im sure this has been answered already, but there are 19 pages to go through, whats smaller fan that would work with this? and about how often do you have to change carbon?

peteman990 · Jun 20, 2009

Crownmesire said:
One has to be bigger than the other, for this to work the activated carbon has to sorround the smaller diameter pencil cup. Otherwise the scrubber will not be efficient

Thanks. I haven't looked at any other WalMarts yet probably have a little less than a week before the stank kicks in and I should have this done by then. I attached a bunch of pics of a "Giant" pencil cup that I found compared w/ the other 2 walmart pencil cups. Would this work or does it have to be slightly bigger?

LOL, I know what you all might be thinking... why is he posting pics of pencil cups. I won't have time to really make it for a few days so I can't really mess w/ it too much now. So if you think that the "Giant" pencil cup will work w/ this let me know! Thanks for looking at my pics of pencil cups, it's actually some pretty interesting stuff if you stare at them for 30 seconds it will start doing some whirly-gig shit. Anyways, :weed:

peteman990 · Jun 20, 2009

Forgot the pics! Take a look at these interesting pencil cups, all different sizes! ;-)

Skoad · Jun 20, 2009

I sucked it up and went to wallyhell today to get the supplies andddd.. no luck.

Well I was able to get everything but the pencil cups. They had the larger one there, but only 1 and it was bent up a little. Asses need to restock. Will check again tomorrow or go by office Depot Depot.

peteman990 · Jun 22, 2009

Skoad said:
I sucked it up and went to wallyhell today to get the supplies andddd.. no luck.

Well I was able to get everything but the pencil cups. They had the larger one there, but only 1 and it was bent up a little. Asses need to restock. Will check again tomorrow or go by office Depot Depot.

Let me know if you find the right sized pencil cups. I am going to be searching for those this week LOL. WalMart is such crap they do need to keep their shit stocked up... well, at least it's cheap.

Skoad · Jun 22, 2009

Yea, Im gunna run by there today if I get 5minutes. Hate going to walmart, but at least I know what im going for and where it is, so shouldnt be but a 5min trip inside and out!

Budda_Luva · Jun 22, 2009

dayum man good shit dats what i like to see ill be usin it for my next grow +rep

Skoad · Jun 22, 2009

Whelp. We may be out of luck using walmart. I went back today and the only one they had was the 1 big one I saw last week but was dented up. Asked one of the ladies why they didnt restock them and she scanned the item and said bc they will not longer be getting those pencil cups in stock.

Here are some I picked up from Office Depot. Hopefully they work as well.
The black one 6 1/4in tall and 4in wide. The silver one is 4inchs tall and 3 1/4in wide.

Skoad · Jun 22, 2009

Whelp. Didnt end up near as good as I had planned. The lips on the cups made it kind of a pain in the butt to get the carbon down the side. I got it done tho for the most part, just not all that even anymore lol. I also got actual pantyhose, realizing that you do have a black ladies sock. So I will prob re-do it.

I put the opened end up against the fan right orrr? Would love if someone would post a picture of how they connect theirs to the duct. <3

peteman990 · Jun 25, 2009

Skoad said:
Whelp. Didnt end up near as good as I had planned. The lips on the cups made it kind of a pain in the butt to get the carbon down the side. I got it done tho for the most part, just not all that even anymore lol. I also got actual pantyhose, realizing that you do have a black ladies sock. So I will prob re-do it.

I put the opened end up against the fan right orrr? Would love if someone would post a picture of how they connect theirs to the duct. <3

Yea man, found some cups that will work from Office Depot I think. Haven't tried to make it yet, but that one looks like it will work. Well done. I am pretty sure you just take that and jam it onto the vent fan if you have one. That's what I am going to do on my setup, maybe even duck tape it if it doesn't fit.

Guess the original post was a while ago. Damn WalMart is always discontinuing their items. I went there the other day to try and find some lamp oil. Asked one of the ladies there and she said they don't carry it anymore. Why stop selling lamp oil, doesn't make sense to me lol. No go on the pencil cups either, guess they stopped carrying the two different sized cups, just one to show for.. stingy ass WalMart lol.

Why does it have to be a black ladies sock? Any pantyhose would work i would assume, right? Gotta be a certain size or anything

Skoad · Jun 25, 2009

Im sure any style sock would work, just what he used. I had my girlfriend grab black pantyhose, and she actually got pantyhose (the full pants style) and I jsut cut off one of the legs and used it.

And I put the end of the duct work the exhaust is blowing in thru, in the open end right?

herbsman218 · Jul 7, 2009

keep up the good work man!!

Shackleford.R · Jul 7, 2009

i love you! haha thats an awesome DIY project!

Mr. Gone · Jul 15, 2009

One of my favorite DIY's. If anyone's still interested, I had to make another one of these and was SOL at Walmart, but can confirm that OfficeMax was fully stocked on both cup sizes.

Skoad · Jul 15, 2009

Did you get the same cups that I posted a picture of a page or 2 back? If not, do yours appear better?

Mine are alright, but the lip at the top is a pain.

sirsmoksalot · Jul 15, 2009

Skoad said:
Whelp. Didnt end up near as good as I had planned. The lips on the cups made it kind of a pain in the butt to get the carbon down the side. I got it done tho for the most part, just not all that even anymore lol. I also got actual pantyhose, realizing that you do have a black ladies sock. So I will prob re-do it.

I put the opened end up against the fan right orrr? Would love if someone would post a picture of how they connect theirs to the duct. <3

Yeah I

Yeah I bought these I liked it but cost too much and I didnt like the lips either the inside cup seemed to want to fall out. I took it apart and returned my carbon to a bag. I was looking around at work last night and found a beautiful can (4"round x 10" long) all ready with screen like caps on the end. I snaked 2 of them. LOL :-)

I put 2 pieces of cut to fit filter screen on the bottom and filled with carbon, another 4" circle of screen, more carbon, etc... untill the can was filled. I used 2lbs of carbon to fill it. My question is will a 90 CFM booster fan be able to pull enough air through the can where it has a 4" opening on each end but nothing on the sides? will I have to drill/machine holes/slots in the can? I would assume I would use more of my carbon with out the holes/slots as air will have to travrel the entire 10" length of the can. Sorry if I confused anyone I'm typing fast before I head out to work.

litljohn · Jul 15, 2009

i made one of these filters and they look great and are easy to make,but you get what you pay for.since the carbon isnt packed tight anough the smelly air gets thru with out getting scrubbed.so in all,it helps with smell but not that much.

Mr. Gone · Jul 16, 2009

The OfficeMax ones are the same as Wolfman's original ones from Walmart on page 1. I'm using two: one each for two sets of four 80mm PC fans. I don't have a grow yet, since I'm still in the build phase, but I tried it out by putting fresh cinnamon toast inside, and I couldn't smell a thing from outside the cab. A lot depends on how you secure it to your ventilation system; if any air has a path around the carbon, you're not going to get the full effect. Also, you want to make sure your carbon isn't in too large of chunks; crush it down a bit if it is. Not powder, but not pellets, if that makes sense.

I've never had the need for a stealth grow before, so it's always been shit everywhere, but I'm working on a stealth DWC CFL cabinet with nothing visible from the outside except for the holes in the back for ventilation. I owe the last couple of years of bud to the late great Overgrow, and I always told myself I'd give back when the time was right, and this place has the same vibe as OG, which I lurked incessantly (trying not to be so inactive since this will be my first hydro grow, and I'll probably need all the help I can get). I'm trying to help with little shit I'm finding out from my build, until I get a digital camera and start my grow and journal.

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