bibbles
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Good call. I use 35% H2O2. After I scrub out the res I put some RO water in there with all the pumps and bubblers. I add the H2O2 until it starts to bubble and eat the crap off of the lines. Then I turn the pump on and let it run through the drippers (not in the plants of course). I do this at the end of each run, or when I notice the pH dropping everyday like you did. That usually means something is growing in the res. Fixes it every time.I can't see the inside of my entire reservoir typically, blumats require elevation; however, I just had a suspicion and confirmed it, algae where I can't see. Not sure how much, will have to wait for lights on. My light sealing appears to have been insufficient due to raising the nearest light 4" higher.
This has probably been an issue since day one, and the nutrient change caused a bloom.
Lucky me, reservoir needs a refill tomorrow, so I think I'll refill it with bleach and hand water a few times (big plants, small pots), then hand water once the next morning before getting things flushed, filled, and covered up. I think I'll have enough RO for this (soaking the reservoir with tap+bleach, drain, flush with tap, flush with RO, refill).
I shall be more specific as to the conditions and issues ruled out prior to my next "advanced problem", though... this being a fairly obvious answer... this is definitely on the laziness of presumption. :/
Bleach works too. I just have the H2O2 on hand. Plus if I really need to I can add some to the res to kill off bad stuff in my root zone. I’ve never had to though. I bought a gallon at the hydro store before my first grow on the advice of the guy. Then I decided to change my growing style and it just sits on the shelf. Until it comes time to clean the res. I also feel that the H2O2 would be more easily eliminated from the system after cleaning.Why not bleach? I'm sure it's cheaper, it's got the same mode of action (oxidization), and people run bleach in very small amounts in sterile systems just as others do H2O2 or Zone without problem. I suppose H2O2 stops reacting the most quickly, but not by a large margin, it's the staying power of chloramines, as oppose to simple chlorine, which makes Zone stand out.
I do not run a sterile system, but once upon a time... #AeroponicLifeMistakes
EDIT: Dat algae was THICC. :(
Thoughts on Physan 20? You just missed that second edit. :p
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