Thought I’d see what all the hype was about, so ordered some Jacks 321 and a mg scale for 1 gallon mixes. I already had the epsom salts (plain generic for soaking, laxatives, etc.)
I tried 3 times to mix this stuff (A first, then Epsom, then B, all fully dissolved ea time), and it won’t even break an EC of 2. Jacks says you can mix them separately, then combine, so I tried that to see where the problem is. Here’s what I got for EC numbers when mixed according to package directions for 1 gallon:
Part A 4g - 1.08 (supposed to be 1, so it’s close, especially being a blended mix)
Part B 2.5g - .68 (supposed to be .85, and it’s not a blend, so not even close to spec)
Epsom 1g - .2 (not stated, but with only a single gram, it’s not going to be high anyway)
So according to the packages, I should get an EC of 1.85 without epsom. Looks like it should be 2.05 with it, but I’m only getting 1.96, so not as advertised, but close enough to work with I guess, but with all the known calcium deficiencies in hydro, I’d think it’d be closer in the Part B areas.
Either way, it’s never going to hit these numbers of 2.4 with RO water, like this chart says. So what gives? Am I doing something wrong?
Their chart for RO water says I should be getting an EC of 2.4
Oh, and I’ve used 2 TDS meters, and recalibrated the new scale several times with the included weights.