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I’m using Jacks CalNit 15-0-0 + CaCl. I want to replace those with the Haifa Cal Prime 17-0-0 +33CaO. How much of Cal Prime should I use for 1to1 replacement?

Hypochlorous Acid is shelf stable at 280-550ppm. I use both pool shock and I have a generator, the end result is the same. Pool shock has a flocculant in it which settles to the bottom. Make sure the final solution is PH’d to 6.0-6.6ish and check the strength with some chlorine test strips. I...

I’m having a hard time fully dissolving the K2SO4 (Aplha Chemicals) in water. I tried using warm, boiling water, more water but some of it won’t break down. Anyone else notice this? Any tips? Any liquid alternatives?

How concerned should I be about salts absorbing moisture and throwing values off? I’ve been measuring everything by grams but I’m thinking EC would be more accurate way of doing things. What should the ppm/EC of each salt be? I could bake my salts to make sure they’re dry then weigh and mix a...

I reordered Jacks Hydro and Jacks Calnitrate and apparently they have new packaging and the cal-nit is a little different. I emailed jr peters and they told me to continue using it as I was.

Noob looking to switch over to jacks 321 pro. Can someone fill me in on what “most” is?