Did you spray these with something? Im so confused as to how this would aquire on your pipes. Like is there heavy condensation? You running 80+temps and chilled res water? Or is it stagnant air in there with high humidity levels? I dont see how on earth this could have gotten on them pipes.
Obv you cant return your system lol, and your invested enough into it where you need to use it. If that is some gunk build up, its not on your airlines. I paint everything under the canopy black. People look for reflection up to save watts, but in hydro it just causes light leaks.
Test your system for light leaks when you empty it and clean it. Your going to have to. Id also like to see another picture of your roots.
Remember if your running beanies, a live system, you cannot operate it the same way others operate sterile systems.
As for dwc being better than coco, your right its not much better, DWC is shit in my opinion. But your running a RDWC system, and when done properly, should have noticeably faster growth rates than with passive hydro systems.
From the looks of your last photos, your twisted growth is caused by a ph imbalance. Just keep your ph between 5.6 and 5.9 and you will be fine. The other deficiencies in your old growth further my point that when your ph starts dropping, your running out of nutrients, which is why you got twisting and deffeciencies up top. I mean you can add enzymes and hope that it all evens out, or you can do what I do, top the system off and add more of one specific nutrient. Those pics kindof loked like
calmag, So what if your running out of
calmag, your ph drops, and your enzymes cant produce calcium right? Im sure they can reconfigure specific nutrients but calcium, or mag. . idk man.
If that red shit was in the air constantly everything would be red, even your blue lines, but they are not. Your grow lights should kill most the microbes in the air anyways if your using full spectrum.
One thing we all agree upon, is clean everything lol. . and get us more pictures of your plants and roots.
I dont use enzymes, my res lasts 4 days before ph drops and i need to add more nutrients. Also go flora trio,
calmag and
hydroguard. .u can do that full grow for dirt cheap, and all of us can help troubleshoot ur ratios cause most of us use it.
Also when your system is empty, put a large flashlight in it. Shut the lights off and look for light leaks. . fix them. .you can see them in the dark. . Problem solved.
I think if you ditch those nutrients and enzymes, and just get flora trio, you will be fine. 120$ in nutrients and some light leak fixes and I know I can get you going. Id put money on it lol. .