The only product I use from JKO was VL, kinda made my fish's skin glowed...
A follow up water making question -- do the clay additives settle/crust eventually in the pipes?
I use clay (Refresh), seems to settle more in my bio than crust up in the pipe work. I think if you have a bottom drain that is fed into a vortex the purging of the lines should keep it from crusting, and I do mean purging on a regular basis....