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So I'm new to this so that's where this Q is coming from ;?D So you're planning on 5 fixtures total with 10 (or more?) 140mm fans, is that correct? And if you're planning on pullin 2elbows, one suggestion is increas your veg time, just don't do it like I did. I'm wondering it you couldn't cool...

Yeah, my problem is that when I decide to dive into something completely new to me, I read and read and read until I'm dizzy, and then what I can remember is often jumbled and full of misremembered pieces that make up a wrong whole, lol. Eventually as I stick with it over time, it does begin to...

Parallel strings? If I only have 5 COBs on my fixture, what would a string consist of? Or do you mean running each one parallel? Also, I thought I read somewhere that it was easier/better to run them in series, although that may just be an assumption on my part (and I've read so much that I...

I still haven't found a thread dedicated to the topic of everything that can go wrong and how to prevent it, lol. I thought if all that info was in one place, it would help noobs like me to avoid all the pitfalls of building your own COB fixture ;?D

Hey all, I'm still pretty much a noob when it comes to DIY LED fixtures, so bear with me if I'm asking an obvious question ;?D So I've read that a fixture with say 5 COBs run in series, can experience catastrophic failure in the event that one of the COBs burns out, causing a cascading power...

Dang it, apologies to the OP for hijacking this thread, my mind does wander now and then and sometimes all of the time ;?D

Absolutely, and maybe some tilapia and/or catfish too. That is one of my prerequisites for the piece of land I'm in the market for, it must have a year-round source of water on or adjacent to it so I can have a small pond, maybe even a hydro-powered generator. I want to build a subsurface...

Someday, when I move to Oregon and can grow outside again, I am planning on going back to organic farming. I'm a big fan of permaculture, just can't practice it much living in the city under my current conditions. Gonna raise my own chickens, maybe a couple of larger animals, and incorporate...

Oh, okay my bad, sorry, just a bit grumpy on this topic, there are those I sometimes refer to as organonazis who just won't let up on that topic. And don't get me wrong, I'm not against organics and in fact when I grew outdoors that was mostly what I used. But when I switched to hydro I found...

Yeah, musty mildewy weed is ganky, lol. But also, if you leave insufficiently dried weed enclosed in a container too long, even paper bags, add a little too much heat and your bud starts to decompose, and even a little of this goes a long way to ruining the odor and flavor profiles, whether or...

EDIT: I deleted this comment due to derogatory comments and wrong assumptions on my part, my apologies. ;?) Fearnoevil

Btw, if you're going to go through the trouble to grow your own, bite the bullet and always use fairly fresh nutes. I try not to keep stuff longer than a couple of years at most (some much less depending on content). The less organic the longer it will keep, but imo you get out what you put...

I agree with those who think it's bad genetics as well as improper drying/curing as the most likely culprits. I've grown some herb that came out looking like those, really airy and had that same look, smell decent but the taste was nasty. And drying is the next issue, you definitely want to...

BTW, last winter I disconnected the exhaust hose from the basement window exhaust and let it blow inside, and basically cut my heating bill in half ;?D, I believe in utilizing the waste heat when possible, I had even consider trying to hook it to a heat exchanger to preheat the cold water going...

OOOOHHHHH, yeah that's a nice looking unit right there, mmmmmm 8-)8-)8-) Where can I find one of those?

It may turn out that a reservoir is a better fit for this system, need to do some more research. In the meantime, when I build my first fixture, I'll go with a small fountain pump in a res just to find out what kind of heat build up I can expect, then try to extrapolate the numbers from there.

Naw, it's just a 10 gal fuel tank for street racing, but that's the kind of thing that suits my need for overkill, lol, plus it's shiny :hump:

Yeah, that's one reason to keep it upstairs, BUT come next summer I'll need a different solution, maybe piping it out the window (it's a spare room so could be done).

How about one of these ;?D

You're right, I know there's a ton of details i haven't tackled yet, it may even turn out that with the size system I'm eventually planning on getting to that I might have to install a chiller even, idk, but I'll get it nailed down as soon as I build this first one and find out what works.