IO Salt Question

[walloutlet]

Definitely get the tan residue at the bottom of my mixing barrel. Every so often I just clean the barrel out with a vinegar mix. The bigger problem is the residue on the powerhead.

Again, I just assumed this is normal and appears that is the case.

[Ron99]

I need to test Ca and Mg in the salt again. Been a bit lazy :-) It cleared up but I had to mix it for 48 hours. I think next time I will dissolve salt first and then do as Tom suggests and dissolve Ca and Mg separately and add it in that way. I guess the salt doesn't like going into water that already has CaCl and MgCl mixed in.