SPARKLING WATER:
Carbonated water obtained either through natural underground springs or made by dissolving CO2 gas in water. Carbonation lasts longer in naturally carbonated waters.
MINERAL WATER:
Contains dissolved minerals. Various brands will contain different levels of minerals. Some mineral waters are made from tap water, then minerals are added or removed as desired.
CLUB SODA:
Usually tap water that has been filtered and carbonated. Minerals and mineral salts are added. Club soda will also take tomato juice stains out of your carpet.
SELTZER:
Usually tap water filtered and carbonated. No mineral or mineral salts are added.
SOFT WATER:
Low mineral content water. Usually comes from deep in the earth with its principal mineral being sodium. Will dissolve soap better and will not leave a ring around the bathtub. Will dissolve minerals such as lead from pipes.
HARD WATER:
High mineral content water. Usually comes from shallow ground that has high concentrations of calcium and magnesium. Hard water leaves rock-like crystals.
SPRING WATER:
Water without gas bubbles, usually tap water or natural spring water. Bottled bulk water falls into this category. When purchasing bottled water, try buying it in glass bottles labeled natural.