Don't use your pool water. It is not sanitary, and has a bunch of extra chemicals that you won't want in your drinking water.
I think first things first. Get your water tested, and then move onto what the next step is. In some counties, it is even free, but even if it isn't, it is cheap to test for coliform (generic standing for bacteria), TDS (total dissolved solids, e.g. hard water), metals (iron, manganese, lead...) and pH. Try to get a sample as close to the well as possible and let it run for a few minutes so your sample is accurate for your water, not whatever is sitting in the pipes.