Mistake #1 - Assuming that clean drinking water is the only concern.
While making sure that your family has safe, clean water to drink, you also have to understand that the best water treatment should cover your cooking and bathing/showering needs, in addition to, protection from plumbing pipe corrosion.
It doesn't would you worthwhile to drink clean water, but eat food that's been cooked in water containing dangerous chemical toxins like herbicides and pesticides. reverse osmosis system
Furthermore, in the event that you purify your drinking water, but use regular plain tap water to bathe and shower, you're being subjected to high levels of chlorine. Chlorine not merely strips your skin layer of essential oils, but it also creates a harmful gas in the shower steam. This chlorinated steam can aggravate asthma and other respiratory sensitivities.
All the chemicals contained in unfiltered plain tap water have the potential of leaching lead, copper and other heavy metals from the pipes in your home's plumbing. These metals are poisonous and may have a significant effect on the health of your family...especially small children.