BRS two part magnesium

saltgogi · Jun 10, 2020

Hello,

I have a question about the BRS two parts.
I have several small pack of calcium and alkalinity that I will mix in a one gallon jug.
The pack for magnesium is 3-4 times as big as the small packs of calcium and alkalinity. Do I really mix the whole thing of magnesium in one gallon?
I've attached pics as reference to how big the pack is.

Fourstars · Jun 10, 2020

Yes you do.

saltgogi · Jun 10, 2020

Fourstars said:
Yes you do.

Wow that's a lot. I thought so but just wanted to make sure.

Randy Holmes-Farley · Jun 11, 2020

The solid magnesium chloride hexahydrate and the magnesium sulfate heptahydrate used in my recipes (BRS uses these) are only about 11% magnesium by weight. So it takes a lot to make the solution.

But the magnesium part is dosed much more slowly, so it lasts much longer. About 6 times longer if you are using the sodium carbonate recipe and about 12 times longer if you are using the sodium bicarbonate recipe.