TL;DR I am experiencing rising alkalinity without dosing additives after using Sodium Bisulfate during salt mixing
I have a supply of Instant Ocean that is mixing to 11 dKh for a FOWLER that I am transitioning to reef. In an attempt to use up my last two boxes of this before switching, I have gone the route of dosing Sodium Bisulfate to the freshly mixed saltwater to bring the alkalinity down to the 8 - 9 dKh range, as described by @Randy Holmes-Farley in this thread: https://www.reef2reef.com/threads/s...in-new-salt-water-or-in-display-tanks.362825/
I have slowly brought the alkalinity in the tank down to 9 dKh using water changes with this IO plus Sodium Bisulfate mix (after aerating the water and bringing the pH back up).
What I am experiencing is rising alkalinity in the tank. I have used both the Trident and the dKh Hanna checker to do the testing, and both units show the same trend of rising alkalinity of about 0.18 dKh per day.
No dosing is happening, just the water changes to bring the FOWLER down to 9 dKh and then the rising trend. Again the alkalinity has been tested with both the Trident and a Hanna checker.
With that laid out, are there are any chemical mechanisms that would bring the resultant bicarbonate (HCO3-) from the addition of sodium bisulfate (NaHSO4) back into solution, thus raising the alkalinity in the tank?
If I didn't provide some information that it relevant, I am happy to provide it.
Thanks for your time if you've read this far!
I have a supply of Instant Ocean that is mixing to 11 dKh for a FOWLER that I am transitioning to reef. In an attempt to use up my last two boxes of this before switching, I have gone the route of dosing Sodium Bisulfate to the freshly mixed saltwater to bring the alkalinity down to the 8 - 9 dKh range, as described by @Randy Holmes-Farley in this thread: https://www.reef2reef.com/threads/s...in-new-salt-water-or-in-display-tanks.362825/
I have slowly brought the alkalinity in the tank down to 9 dKh using water changes with this IO plus Sodium Bisulfate mix (after aerating the water and bringing the pH back up).
What I am experiencing is rising alkalinity in the tank. I have used both the Trident and the dKh Hanna checker to do the testing, and both units show the same trend of rising alkalinity of about 0.18 dKh per day.
No dosing is happening, just the water changes to bring the FOWLER down to 9 dKh and then the rising trend. Again the alkalinity has been tested with both the Trident and a Hanna checker.
With that laid out, are there are any chemical mechanisms that would bring the resultant bicarbonate (HCO3-) from the addition of sodium bisulfate (NaHSO4) back into solution, thus raising the alkalinity in the tank?
If I didn't provide some information that it relevant, I am happy to provide it.
Thanks for your time if you've read this far!