You should have your well water tested for safety...sometimes dangerous things turn up in well water, & while they'd not be good for you, especially long-term, they
could be deadly to your much smaller & more sensitive pets. I would think that the "added salt" would not be good for snakes either. A great way to remove any hard
water deposits (from water bowls, misting, etc) is just to use white vinegar full strength, then rinse. I buy it by the gallon, great stuff (& a mild disinfectant too).