My nutrient mixing area. Getting ready to mix a batch.
I use distilled water 100oz each jug 1oz/gal for simplicity. Lasts me about 2 weeks then I notice floating bacterial colonies in the Jack's mix.
In goes 180g of CaNO3 in part A
Part B gets 270g of Jacks 5-12-16.
The most expensive part is the distilled water. I use a mask for the Jack's as it's dusty.
That's it. Very simple setup.