"He who marches out of step hears another drum." ~ Ken Kesey
We are but the only thing that goes down in that tank is from our bodies. Our reclaiming goes outside into sand, which filters any particulates nicley. If there Is any solids build up over time, we simply roll it up like a fruit roll up and throw it out as the sand does a great job of holding any solids up top. A septic tank will clog in the drain field, so never flush in one with your reclaiming.Epa tested us last year, all clean with the chemistry we use. Tested our neighbors shop failed big time. And code violations in hid tank as his guys would drain powdered reclaimer waste down the drain.
I'm wondering if I can't keep this above ground? Not opposed to embedding it, I guess I just think of how much rain we get and it "LOOKS" like I'm just draining into the ground with no concerns. If I had a "box" that all this was contained in it MIGHT be easier to see it as a "device" to filter. Might be more trouble than it's worth to build a "box" vs just dig a "box".
We at Xenon recommend a step filter. 1st step is a mesh filter starting with 110 then 156 then 230 and finally 280. Next is river rock then sand then lump wood charcoal and finally wood ash from the grill.