I don't have a water filter. I buy 6 gal of reverse osmosis water at our local health food store, per week.
The liquid minerals are way expensive, so another way to do it is with the Himalayan Salt crystals - say 1 tsp per a gallon of water. The Himalayan Salt is about $2 per pound vs. $10 for a tiny bottle of liquid minerals, and it contains 82 trace minerals.
