Can you tell me what your salt is usually mixing at (when mixed at 1.026sg)?
I'm using HW, which is nice and clean, but I've been getting Mg >> 1600ppm, which is a bit hard on my inverts, I think. ALK: ~7.8, Ca ~480-500ppm. The Mg is the crazy one.
Would I be able to do a pickup on Friday? I am traveling and getting back to LAX 1pm on Fri.