The Mill's Pride Club

[simon]

ive seen a lot of setups with 2 dark vents on one side of the cabinet. i know the idea is to have the dark lovers on the opposite side of the intake fan so you can draw the air across the cabinet, but wouldnt it make more sense to have one lover on each side, this way you know air is being sucked in from both ends at the bottom? it seems that if you had both on one end, the other side may not have as much fresh air coming in. then again, maybe i dont know what im talking about. any ideas?

Air will always follow the path of least resistance. If the vents are placed opposite each other, the vent closest to the fan will be drawn from first. Once its capacity to flow is exhausted (no pun intended), the air will begin to flow out of the vent farthest from the fan. This would create the imbalance you refer to, at least in theory. In practice, having the vents on opposing sides probably won't make a very big difference if there's enough suction power on the exhaust side.

 

[simon]

My temps are crazy and just getting to be under control As of now the tem inside are 75 and outside 73 deg. There is usually about a 2 deg diff. One time when i cleaned my filter from the intake there was no diffrence in temps. I can get my ladys 8in from the light with no probs.

I wouldn't change a thing.

 

[mysta177]

Simon- are you going to refill that can when your done? If so have you found a good place to buy carbon?

 

[Guest]

ive never grown before so pardon the newb questions. after much contortion i was about to fit a glass reflector in the c24. How closely to the glass can i get my plants?

 

[simon]

Simon- are you going to refill that can when your done? If so have you found a good place to buy carbon?

I'm going to buy new filters for several reasons. IIRC, each Can50 holds ~37lbs of activated carbon. When I last priced quality activated carbon, the shipped cost wasn't too far from the filter's purchase price. Too, the carbon is packed in the filters with a mechanical "shaker" that I'm unable to duplicate. And, thirdly, the mess and the PITA of filling the devices is something I don't mind paying for.

The problem for me is disposal. It's not like I can toss a couple of barrel-size charcoal filters on the curb by my house. My plan, at this point, is to enclose them in contractor garbage bags and take them to the trash bins in an apartment complex.

 

[simon]

I've been meaning to mention this:

If anyone is looking for a good cleaner that works wonders on post-chop, resin covered hands and fingers, look no further than Goop Hand Cleaner typically found in auto parts stores. You may even have some in your garage. The stuff works very, very well and even comes in several flavors, including orange that blends well with the smells of the harvest.

 

[ARTofMAKINGfire]

Hey Simon, whatup?

 

[mysta177]

I'm going to buy new filters for several reasons.

I must agree......I paid $110 for the can33 so I see your point. Thanks gain

 

[simon]

Hey Simon, whatup?

Hey, AomF! How is it growing?

IIRC, you hold the record with the highest yield from a C13 (AK). That was you, right? I think it was something like ~11oz.

 

[sugabear_II]

The problem for me is disposal. It's not like I can toss a couple of barrel-size charcoal filters on the curb by my house. My plan, at this point, is to enclose them in contractor garbage bags and take them to the trash bins in an apartment complex.

I would avoid the apartment complex dumpster - much too easy for a noisy so and so to see you and your plates and report you for dumping. How about just taking them back to the hydro store when you buy the new one and just dumping it in there trash can. I mean what can they say? maybe they'll even recycle it back to the manufacturer...

so I've got my new 400 watt hps in my cabinet. I added more intakes and now the air flow seems to be pretty good but the temps are still 85 F in the grow space - ambient is 68.

I had to do some scrogging and really hurt my two of my plants and then I discovered damping off on another plant which doesn't look like it will make it.

I've got this fan in there pointing up at the light to keep avoid light burn when the lights come on but I'm really at a loss of what else to do. I put the carbon scrubber on the back so now the 265cfm is pushing through the scrubber. there's four 2" pvc intakes in the floor and then three 4" diameter darkroom louvers. I gotta say I am real disappointed in the round louvers as they are not light tight as advertised. I wish I had canceled the order and gotten one of the square ones now.

I've got some other plants in my smaller cabinet that need to come into flower shortly so I can't keep the fan on the floor forever - I have one I'm going to mount to the side of the wall.

I guess I'm wondering what can be done at this point? I only have a single 4" hole in the shelf - I could put another in there?

there seems to be plenty of intake flow now as the doors are lightly sucking shut now.

My carbon scrubber is only the can 9000 (118cfm) model - could this be putting too much back pressure on the fan? will moving up to the can 33 (200cfm) do the trick - or do I need to consider an air cooled hood?

I can probaly afford one or the other but that's about it.

thanks

-suga

 

[sugabear_II]

I must agree......I paid $110 for the can33 so I see your point. Thanks gain

where did you get the can33 for $110 - I'm looking at $139

 

[Guest]

Im wondering after starting seedlings under flouros for two weeks, how close should i start them next to the hps? its 400w and its totally sealed glass so it feels cool pretty darn close to the bulb.

I plan on doing 2 weeks flouro, two weeks 18/6 and then flowering. Does that song good not to overgrow the cab?

 

[sumo]

Sugabear I put my light closer than that during flower. That fan on floor may be stirring up the hot air. These gull wing reflectors reflect more than light back the way they are shaped like an upside down half pipe. You can almost see how that fan blows air up forcing hot air to shoot back down. The normal function of the cab will be pulling much cool air from the floor and pulling much hot air at the top. In other words the top of cab can be much warmer than bottom. Best not to stir this all up. Make sure thermometer is in shade so you are taking air temps and not being affected by radiant heat.
Stoner. During veg the light can be as far away as you want. During flower push the limits. I get mine as close as 6". You don't know how close you can get it untill you see the burn. Read your plants. Flower when ready for as long as needed.

 

[mysta177]

where did you get the can33 for $110 - I'm looking at $139

Hydro store in cali

 

[sugabear_II]

sumo,

thanks man - I just had the temp unit sitting on the floor - it is white so it should not absorb too much of the radiant heat, but that could have been an issue - today the temp unit is shaded by the plants so we'll see what the real air temp peaks at.

I hear you about the cool air being pulled up and the fan maybe causing more of an issue - we'll see how the plants do in there today is the first full day. If things are ok I'm taking the fan out anyways to make room for the other two plants.

85 F is not going to kill them - I mean they survive outside with hotter temps - right? I guess I just didn't expect to be so hot.

The plants were under a single 150 watt hps before so I imagine this is a big adjustment for them - I will move the lamp down a little at a time over the next week.

I'm still wondering which would make the bigger change in temps.

1. bigger can filter - I'm reluctant to do this as the one I have is still working well.

2. air cooled hood - and just draw the air in through the hood and out of the hood to the upper chamber. to the fan - I don't want to go full bore and have it be a pass through completely separate from the - but that might be the best thing - have the big dayton pulling air into and out of the hood when the lights on and then use my smaller dayton to pull air out of the grow chamber and through the carbon scrubber.

argh - I think maybe I should just relax and let the plants do their thing before I go and make too many changes right now.

-suga

 

[simon]

Suga, I took another look at your rig. Blowers by nature have a hard time dealing with static pressure. Your cab is configured in such a way that your Dayton is moving less air than it could due to the restriction inherent in the setup.You're using the top portion of the cab as an extension of the fan's intake area, which is why your doors suck shut. Regardless of how many intakes you place in the grow portion of the box, the fan will always "see" a 4" intake that's limited by the restriction of the filter. Mellowman, who was one of the first to use a setup similar to yours, had to cut a couple of damper holes in order to lower his temps.

If you want to fuss-free setup, I'd recommend an air-cooled reflector, a centrifugal fan and the biggest filter you can work with. If the three are aligned in such a way as to mimic a (relatively) kink-free path, your temps will hover close to ambient, assuming you have enough intake area in the cab.

 

[sugabear_II]

Hey Simon,

Thanks that answer makes alot of sense to me. I will go ahead and cut a few more holes in the shelf to allow for a more free air flow into the upper section and see how much that helps. Next step will be the bigger filter as you suggest. Then we'll move on to the hood.

thanks again.

-suga

 

[sugabear_II]

well I cut a bunch of holes in the shelf and things are cooler now.

sumo you were right temps on the floor with the thermohygro were below just below 80 in the shade.

the plants looked to be enjoying things under the new brighter sun before I added the extra holes in the shelf. hopefully tomorrow the temps will be nice and low and things will be good then I can work the light down lower.

I added the two plants I wanted to put into flower into the cabinet. so I'm up to the 6 plants I wanted. one of my plants is still looking really ill - another issue though - damping off - seems to just be killing this one strain. I may just toss it if I doesn't pick up in favor of something else.

anyhow have a good night y'all and see you later!

-suga

 

[mysta177]

only 3 more ladys left.....and this c13 is going to be on its next grow..

sourdxsupersilverhaze

purplecream

 

[nomoreschwag]

I'm building two different Mills Pride cabs right now. I'm dropping what I consider to be a decent amount of money on lights, hoods, inline fans, etc because I want to do it right... I'm making a C-25 into my veg chamber. 250w MH, 4" vortex, air cooled hood...
For my flower I'm using a 400w HPS, air cooled, vortex... but I can't find the cab I want. The C-25 that I'm doing now is just a little too small for what I need for flower. Is there one that is about a foot longer? If not, suggestions please.