Keep in mind that Kalkwasser (or Lime water, Calcium Hydroxide, etc.) is not good at raising calcium and alkalinity levels. Kalkwasser is meant for maintaining them. You would be best off using either a Two Part Addictive along with a regular Dosing of Kalkwasser, or a Calcium Reactor along with a regular dosing of Kalkwasser to keep your calcium levels up. That's just my opinion.
Take Care,
Graham