Saturation Levels of CaCl and MgCl in RO/DI Water

[Todd]

I am going to start a dosing regime using a dosing pump and am working through the logistics of it. I would like to make my solutions soon and get my levels up to a point where I can move to a maintenance mode.

I would like to know what is the saturation level of CaCl and MgCl / MgSulfate in RO / DI water. I know that Randy Holmes Farley suggests 500 g / 1 gallon of water for CaCl (Dihydrate) and 8 cups of Magnesium Sulfate into 1 gallon of water. I would like to know what is the saturation point (ie at what point will these two precipitate out), of these two solutions (CaCl / water and MgCl and Mg Sulfate in a 1:1 ratio / water) so that I can make a strong solution, thus be able to dose less of it.

I hope this makes sense. I went through the chemistry section of the reference library but in no place did I find saturation points. The chemicals I am going to be using are: Magnesium Sulfate (MgSO4)*7H20 and Magnesium Chloride HexaHydrate (MgCl2)*6H20 - AKA Dead Sea Works; I am planning on using these in a 1:1 ratio. The Calcium Choride is Anhydrous Cacium Chloride 94-97%.

I could experiment with it to figure it out, but if someone has already done this it would save me the effort, or I could just use the recommended solutions, but then it would involve a little more work - which I why I am moving to the doser.

Thanks!