Future Organic Mitigation Plan
Once the chemiclean situation stabilizes, I'm planning to go all in on organic export and mitigation to try to reduce cyano in the future and potentially help anything (such as the magnifica) that might be impacted by organic toxins.
The plan will be somewhat unusual. lol
I have a tee built into my return line that just sits idle, with the exit end in Brute #1, at the start of the Brute train sump. I added it in case I ever wanted to keep the refugia systems running without being connected to the display, but it will be perfect for this application.
I want it to be idiot proof, so if something unexpected happens, I cannot get an overflow situation, and I'm basing it off the ozone and GAC DIY system I used years ago.
One thing I have in abundance are salt buckets. I will use three of them, nesting one in the other.
The bottom one (#1) just collects water from the next in line above it, and has a bulkhead in the bottom. It will be sitting on Sump Brute #1 lid, and the bulkhead will aim straight down, through a hole in the Brute lid, and into the sump.
The next one above it (#2) will contain the GAC and possibly a polymer resin such as Purigen (don't want to support Seachem so I will look for alternatives, hobby or not, and suggestions are welcome). It will nest down into #1. There will be a lot of GAC in mesh bags. Enough to provide a about 2-4"inches across the entire bottom of the second salt bucket.
This salt bucket has a bunch of 1/4" holes drilled in the bottom to allow plenty of easy and rapid flow out of the bottom (more rapid than the planned inflow of water) and into the space between it and the bottom of Bucket #1 below it, and then on to the sump. I think I may put a small section of egg crate on the bottom of this one, below the bags but above the holes, to allow water to find any open holes.
This is where all of the binding action takes place, and these bags will be removable for replacement as needed. I don't expect the holes will ever clog, but I will monitor that.
The top nesting bucket (#3) will be for an ozone reaction area. I don't plan to use a lot of ozone, and may even stop after a while, but ozone may degrade toxins that are not bound, making them less toxic even if they remain in the water. I still have to work out details of this area, but it will likely have some bulkhead standpipes in the bottom set to allow a few inches of water in this bucket. I may also drill some other holes on the sides of this bucket as emergency overflow into bucket #2.
Water will enter from the top of #3, using my return line tee, , fill a few inches, then go over the bulkhead standpipes like small overflows. I will then have a couple of air/ozone bubblers in this section. I was thinking of a
amazon home product like this one (need to be sure to get one without a forced manual timer, I'd prefer no timer and just use an AC timer to control it ).
https://a.co/d/07UeQVpy
The overall idea is that tank water will get ozonized in #3, get organics bound and ozone oxidants removed in #2, and then collected in #1 and sent back to the refugium system.
Prototype bucket #1, looking at outside bottom
Prototype bucket #2, looking at the inside and outside