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Originally Posted by danny zubot
I was actually wondering about adding baking soda to the kalk water after mixing it, to nutralize the ph a bit. Are there any ill effects from doing this in your experience?
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Never tried it - never had a reason to. I would guess that since baking soda will supply carbon (as carbonate) that the combination would lead to calcium carbonate precipitation, which would render the kalk useless.
From my experience systems tend to run lower than pH 8.2-8.3 and kalk can be beneficial in raising it.
Unless you have identified an 'abnormal' pH level as the cause of a problem I would'nt get too creative in trying to obtain textbook levels. Often it can do more harm than good. If you
have to lower your pH due to Kalk use then I suggest adding vinegar to the kalk mixture POST mixing.