Distillation is one method for purifying water. Most Culligan Water dealers choose to purify water through reverse osmosis, which uses pressure to push a solution through a semipermeable membrane. This barrier allows fresher water to pass through and keeps salt and other large molecules behind.

Your local Culligan may offer distilled water options as a specialty order. Distilled water is safe to drink, but because the distillation process removes many of the naturally-occurring, and helpful, minerals from water, using this type of water as your daily drinking could end up causing more harm than good in the long run.