Gone-
I use IO salt as well.
As I learned from Bang, thomas, izzo and some others, test your source water BEFORE you add anything and see what you get as far as ph, alk etc...
Mixing the salt in, as well I learned, is super super important.
This is what worked for me, and it seems is the correct way to do it:
1.Fill a 5 gal (or whatever size) bucket with your source water of correct quality
2. add salt little by little, stirring it all the while to the correct salinity
3. add a powerhead to the bucket and if you have one, possibly an airstone
4. let run about 24 hrs
5. add a heater to adjust temp a couple of hours before wc
6. test salinity, ph and alk of this water and adjust, let run for a little while longer
7. test tank water and then add whatever you have to to the bucket ( like i added my b-ionic calcium supplement to the bucket)
Change your water.
Worked awesome! Been doing that, and little by little everything is coming into the correct parameters!