Tunze calcium dispenser

jfl14609

Active member
Does anyone run one of these? I have one and it looks fairly simple to hook inline to my top off but I am wondering how much kalk people add to it. I have a larger system a bit over 300 gallons and I dose 2 part but Kalk is cheap so why not use it too. I just wonder if I will have to add it every day as the dispenser looks fairly small
 
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