Going to add kalk to my ato water and see if it benefits me at all. Wanted to know from those of you that add it through your ato how you do it. Are you just mixing it in your ato water bucket then suspending your pump a few inches ? Or are you mixing in a seperate container/bucket and siphoning the good /middle section out in to your ato resoivoir so you dont get the build up on bottom or crust on top? Just wondering what method people seem to like or works better