Enrique,

A solution: 6 parts baking soda, 1 part washing soda. I make up a few lbs. at one time and then dissolve it in RO water at a concentration of 1/2 lb. per gal.

B solution: 1 lb. of Dowflake (Calcium Chloride) in 1 gal. of RO water. It get really hot when it dissolves so be ready to put your container in a tub or sink full of cool water. I use old vinegar jugs and they will warp if it get to hot. Make sure to rinse the jug out with a spoon full of baking soda and water before you use them. That will neutralize any residual vinegar in the plastic.

Dissolve both in a make up water as I described above or feed with an air house through the air hose port on a MaxiJet in order to make fine adjustments in concentration. DO NOT mix the Part A and Part B or feed at the same time. You'll just end up making aragonite that wil cover everything in your tank.

My RO water is a lot cheaper than B-ionic's. Not that I'm putting B-ionic down. Its a very good product. I just chose not to pay the LFS for something that is 90+% RO water when I can buy the same thing at HEB.

Gary