Ok I might have found one thing that can be contributing to the bacteria bloom for months.
I have two 275 gallon IBC totes in my basement for the sump. The first one I have set up as a settlement chamber I just drained it out last night and took out a bunch of detritus, I was not able to get it all as I have K1 in the tote but I had to get 90-95% of it. I did not realize how much had accumulated in there. I need to come up with a way to keep that clean, my first thought is, fill a reactor with some poly fill to try and filter some of it out I was also going to put a small pump in there to try and keep the detritus suspended. Also try and run more macanical filtration, I might hook up the DE filter to that tank instead I just need some sort of inlet screen for the pump so I don't suck up the K1.