I _think_ the health dept says the no2 comes from the poultry manure. It is
a very high level. See my other post today. In any case, its there, and
using ro/di is cheaper than adjusting the well-intake. I understand what
you're saying though.

I hope the ro/di will work out well. There are probably chemicals such as
phosphates in the water too. I would be hesitant to attempt to titrate the
correct amounts of fertilizing chemicals from my well-water. Someone with
more experience might be more successful at this. Frankly, with the land
having been "corrected" with so many chemicals I'm not sure of, it wouldn't
work. I am told by my brother that things such as creasote, DDT, and even
worse insecticides than DDT have been used here. From the (close to)
inside, be aware of what might be in your christmas turkey. Heh

thanks to you,

bob

Depending on the geology and confining layers, the source may not be
from the farm at all. It's unlikely there's much NO2. If you have a
confining layer separating the water, it will not contaminate your
deeper well(Hopefully) but it depends on the permibility of
rock/clay/loam/sand etc. Wastewater from farms should be controlled
like the sewage that it is.

You can hit good sources of water and poor sources within the same
well at different depths. If there is inflow from the farm, I'd see
what you can do about their pollution of your resource and if it can
be traced to their farm.

I would not drink the water.

But NO3 in the tap is mainly an issue for you, not the plants, you
simply will not use KNO3 after a large water change, you'll add more
K2SO4 and KH2PO4.
If the total N is 10-15ppm or higher, I'd not drink the water. 10ppm
of so is about 44 ppm of NO3. Doing a 25% weeklt water change would
add about 10ppm to your tank. You'll still need to add some more KNO3
about mid week.

Regards,
Tom Barr