Sounds good to me.
At home, even though we are on a public water system, we routinely use a Berkley Water Filter System for all of our drinking water. The water tastes better and we no longer spend money on bottled water, which is the only water, my family would only drink. I figure once I have my backup treated water supply in the drums, if and when needed, we would just pass the water through the Berkley System prior to use.
Pete