Hi Avape TX2021. Welcome to the ECF.
What exactly is
1800ml of
VG & PG mix ? I'm assuming it is a Nicotine Base so as to make a Non-Zero mg Flavored
e-liquid.
If you are aiming for a 70% VG | 30% PG Finished Product, then it sounds like the "VG & PG Mix" needs to be about 77% VG | 23% PG.
Given the other known Quantities of VG and PG (assuming All the Flavorings are PG Based). And accounting for a Tad of Round Off and for Calculating the amount of Nicotine as part of the VG to PG Mix.
Let's Start by Writing Down Everything we Know...
Total Volume of the Finished Product: 3415ml
Total Amount of VG @ 70% of Finished Product: 2390m
Total Amount of PG @ 30% of Finished Product: 1024ml
Known added VG: 1000ml (29.3%)
Known added PG: 615ml (18.0%)
Total Amount of Known added VG & PG: 1615ml
Known "VG & PG Mix" Volume: 1800ml (52.7%)
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Now let's Calculate what the "VG & PG Mix" should be made up of to Satisfy All the Known Stuff.
Because the Total Volume of the Finished Product is going to be 3415ml. And at 70% VG that would be 2390ml of VG. And you have added 1000ml when you added the Pure VG.
So 2390ml - 1000ml of VG = 1390ml of VG must come from the "VG & PG Mix".
Same with the PG. Total PG needs to be 1024ml and you have added 615ml of PG via the Flavoring.
So 1024ml - 615ml of PG = 409ml of PG
Hence the "VG & PG Mix" should be made up of 1390 of VG and 410ml (rounded Up 1ml to make things come out Even) of PG for a Total Volume of 1800ml.
1390 of 1800 = (Roughly) 77% and 410 of 1800 = (Roughly) 23%
Thus the "VG & PG Mix" is 77% VG | 23% PG. And is made up of 1390ml of VG and 410ml of PG. For a Total Volume of 1800ml.
Therefore, If you use 1800ml of 77% VG | 23% PG as your "VG & PG Mix", you will end up with a Final Product that has a 70%VG | 30%PG Ratio
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I Can't say what the Nicotine mg/ml Level would be for the Finished Product? Because I don't know what the Nicotine mg/ml Level is for the "VG & PG Mix"?
But given that you are using 52.7% "VG & PG Mix", the Finished Product would have a Nicotine mg/ml level that is 52.7% of the Nicotine Level of the "VG & PG Mix". Or roughly 1/2 of the Nicotine Base used.
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BTW - Someone should Double Check my Math. I Haven't that much Coffee yet.
LOL