There is a lot of information on the use of kalkwasser. I have some additional questions. Is it wise to use it in the makeup water? If so, how much do you put in the makeup water. I use a 44 gal vat of R.O. water for makeup. I mix up a couple of teaspoons of kalk in a gallon of water, let it settle for a couple of hours and then drip it into the water. This shoots the PH of the R.O. water up to 10.45 - 11.00. Even after it stands for a day, it does drop down to 9.45 to 10.0. Is this too high? Is this enough Kalk for the makeup water? Should I add anything else to the makeup water? I would like to hear what other members do to their makeup water and what they add.