**Iamthedude:**
Your level of concentration is what I was really hoping for, but I made it 100 ML so that the math would be easier for anyone who came here to help me.

I think I could run this math out based what I have learned based 1 gallon (3.8L) for all three components in separate containers

I'll try the math here and let others check it for accuracy.

Originally, I said 100ml doses and since I was making a batch of 3.8 ml that means:

- 38 times (x) 3.6g of Jack's A (136.8 grams total)
- 38 x 2.4g Jacks B (91.2 grams total)
- 38 x 1.2g Epsom Salts (45.6 grams total)

I would make 3 separate jugs for A, B, & Epsom. And for each gallon add about 100ml from each jug. Although, that amount would be 300ml extra of fluid. EC would be checked and diluted a little if needed. But, I have a better Idea. Let's get further concentrated.

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**Here is where I want a math check:**
More concentrated version, still based 3.8 liter of RO Water to Mix.

If I wanted

**50ML** doses, I would multiply 3.6g, 2.4g and 1.2g by 76 (2 x 38 to double)

If I wanted

**25ML** doses, I would multiply 3.6g, 2.4g and 1.2g by 152 (4 x 38 to double again)

If I wanted

**12.5 ML** doses, I would multiply 3.6g, 2.4g and 1.2g by 304 (8 x 38 to double again)

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**Ideal Recipe:**
Now, say I am completely correct and I decided to go with

**12.5 ML** ... because I like your idea of a using a syringe. Much easier than pouring.

- Jack's A would equal 1094.4 grams of nutrient (304 x 3.6 grams = 1094.4)
- Jack's B would equal 729.6 grams of nutrient (304 x 2.4 grams = 729.6)
- Epsom Salts would equal 364.8 grams of nutrient (304 x 1.2 grams = 364.8)

Am I getting this right?

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**One more equation - Lower to 1/2 gallon (1.9 liter) Jugs of Concentrate - Still 12.5ML per Dose**
If I am correct above, I'll do one more equation. Say, I only wanted 1/2 gallon (1.9 liter) jugs of concentrate, but still wanted the 12.5 ML syringe amount per gallon (3.8L):

I would just half the above number 304 to 152 to my new multiplier, which means:

- Jack's A would equal 547.2 grams of nutrient (152 x 3.6 grams = 547.2)
- Jack's B would equal 364.8 grams of nutrient (152 x 2.4 grams = 364.8)
- Epsom Salts would equal 182.4 grams of nutrient (152 x 1.2 grams = 182.4)

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Hat's off to steamroller for getting me started with realizing the 38 doses at 100ML. It's from his answer that I started working out the more concentrated doses.