Another late night testing but I'm pretty sure I read it right this time and making note of the reading tonight instead of tomorrow after I had plenty of time to mix up where the decimal point was.
PO4 reading this time was .21
So I have full confidence in my inability to remember things and believe last nights reading was .19 Still high and above my target range which is under .1 or more like between .04 and .09 and my system is easily able to maintain that level without the usage of GFO.
I shouldn't need to run GFO very long. But I do like having a reactor handy for times like this or in emergencies like last years tank nuking by cleaning supplies and used lots of GAC.
And here it is the full sized minimax that fit perfectly in the corner of the drain section of my sump. It's filled not quite half way with 2cups high capacity GFO.
It's quite the setup and holds 2cups very nicely. The reaction chamber slides right into an outer tube the pump fits under and drives the water up into the reaction chambering. To adjust flown you adjust the entire reaction chamber.
The adjustment turns easily but its not a very easy way to fine tune the flow. It quickly goes from not enough to allow a slow churning on top to all of a sudden a chaotic tumble. But after going back and forth on the knob on top for a bit I did get it to a perfect slow rumbling on top.
The pump is supposed to push 211gph which is slower then the mj1200 I've used before that just wasn't enough flow to push through the cement that the GFO would turn into with in a day. That could have been from a few things like the chamber being to narrow or because I dose vinegar the bacteria was rapidly taking up residence in the GFO, etc
But there is no head pressure or not nearly as much as the mj1200 had to endure to get up over the side of the tank, through a narrow chamber, and back over again into the tank. So, time will tell if the 211gph pump can keep up the rumble. It would only take 3 days before I had major clumping issues with the BRS and mj1200 combo.
Only real negative so far is that little pump is loud. I'll give it time to quite down but its going to get replaced of it doesn't.