Ok I have been using kalkwasser in my top water ( 5 tsp to 5 gallons fresh RO/DI ) and can not keep my alk above 7.5 with out correcting with baked baking soda. So if I wanted to mix up a solution that I could dosing with a dosing pump what should I mix in a one gallon jug and how much would I dose in ml ? I loose about .5 dKh every 7-8 days.