I’m having a problem with this part:
Part 2 - The Alkalinity and Sulfate Part
Dissolve 282.8 g of sodium hydroxide (=7.07 moles of sodium hydroxide to match the 3.535 moles of sodium carbonate in alkalinity) plus 68.7 g of sodium sulfate in enough water to make a total volume of one gallon.
I believe I followed these directions, but I get a fluffy white precipitation when I slowly pour it in to the sump, that I don’t get with just sodium carbonate. Additionally, it does not appear to affect my alk much. I’ve been dosing 50ml of this solution daily, and my alk is going down (5.5), where I was dosing 5-10g of sodium carbonate daily to maintain levels at 8.5- 9.0.
This is about 10s after pouring 20ml in my sump: