It doesn't really matter how much water you put in but rather how much calcium hydroxide you put in. Try putting in a 1/2tsp/gal
or so and increase or decrease as needed to adjust ppm Ca
. You may find you need to put some vinegar in the water to dissolve more of the calcium hydroxide to get enough Ca
in your tank. When dosing kalk
this way, the more evaporation the better.
3. Any brand of Kalk better than another?
Not really. To save money use ordinary pickling lime from the grocery store. I use Mrs. Wages. Some people use Ball. If you have loads of cash, use the stuff from the LFS
. Kent is a good brand. It's all the same though, 100% calcium hydroxide.