Let's just say I'm big into recycling.
Typical use "cleaned" filters for first pass or in a pinch only is where I stand on them. So, on ground, in place filter, with newer filters up top or what not. Or run as first pass inline even. Used one acts as a moisture trap and all that. Hence my current design headaches on trying to incorporate passive dehumidification to cut down on various problems with corrosion and filter overloads ... Using road salt has been working but I'm trying to figure out what to do with the waste product. In theory it can be reprocessed with a solar parabolic and flashed dry that way ... etc. Meh. Thinking out loud again. Or is it typing out loud.
Recycling is not perfect, but considering the costs per year to replace giant cans, anything to recoup on those costs is a benefit. The industry as a whole says just turn your carbon into mulch/ground amendment as all the methods dont work. Which is true eventually. But if you have access to some basics and the time (which is where most people just say F' it) then purge and bake dry. Cause while I support making a pence or two, I dont support the greed of the hydro industry as a whole.
Glad it was some insight. I had thought this was more common somewhere in the mix. But I find I dont think right ... or common.
Which reminds me, you lose, get some settling etc. when you pull them apart and throw them back together. (Again, common sense but seems like not saying it is worse.) Always a good idea to have several extra liters of new material to top them off or some leftovers from previous. Not always. Sometimes you have extra and end up shaking them to death trying to get it to fit again. But running a little short after losing from screening/cleaning, is a royal pain as the filter is not going to function.
And as a by the by, it's not fool-proof unless you run it through a kiln in some ways (re-fracturing from moisture escape and bio-material vaporization). Lots of details there, but if you have a kiln, its pretty common sense on how you want to sun dry as much as possible and all the rot. The oven to some degree as well (pardon the pun) ... You do want to take advantage of the UV spectrum (helps with getting remnant solvent out as well) but also to cut down on the silly steam and such. Those darn things hold an incredible amount of moisture. Not as much as other things or we'd see lots of charcoal hempy grows, but enough to warrant the extra care.
Key point, it helps, does work (better than water or 200 PSI air blasting alone), eventually becomes great amendment, plan on a new filter once a year if running perpetual or 3/4 cycle to be safe and sane.
Oh and for reducing humidity during lights off? Either pay the piper on the dehumidifier or just plan on having more filter maintenance. The tent is the limiting factor on just how much you can really do. And the change-up on the cycle may only give you a marginal gain in ambient but a huge potential for other problems with your roots ... Problem is the plumbing with the blow through ... Just not enough wiggle room. Thinking cap went south on me about now though ...
Running passive drying mediums on the intake going to the tent may be something to look into. Wish you had a smidge more room to not do a push. It really can make a difference (IME).
I couldn't do it if i thought of it like that, I wish the world would just be more open about erb......damn where did that come from?? I guess i just tell myself these things to keep at ease, oh yeah, i need another filter.....bad surely the filter would still work, there's no leaks, its fairly old, and i clean the inside out every grow, it's sucking the heat out good as gold....have you ever had that issue? I'm looking at new filters now, cause i can't get hold of 'my mentor' that special time i guess for him.....
