Hey Michael,
so just clarify for me if you would

I tested the tank and have 415 Ca, 8.8 Alk, 1155 Mg. So my understanding is I should bring my Alk down to 7-8 and my MG up to 1300 before starting to dose the 3-Part system in unison. Now do I continue to manually dose the Part A to keep my Calcium up, and dose the Part C a little heavier (but no more than 125ml according to the box) to get my Mg up? That means I'd not dose Part B since I want my Alk to come down? I made a 2x concentration 1L solution of Part C that I am dosing with to get the Mg up.
Thank you for the clarification. I am all in to the ™ system now. Salt, 3-Part… GHL doser haahaa.
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