St. George, Utah Water Hardness & Water Softener Guide
Water in St. George is reported at 13-24 grains per gallon by the utility that supplies it. Here is the source, the scale, and the fix.
Where St. George’s water comes from
Published as the recommended softener setting range; most customers get a groundwater and surface water mix part of the year. Source: sgcity.org · 2024
Is St. George hard water?
At 13-24 grains per gallon, St. George sits in the very hard band — above about 10.5 grains per gallon is very hard on the USGS scale. Scale shows up first inside the water heater, then on fixtures and glass. See the hardness scale.
What St. George’s hardness means in practice
Sizing is arithmetic once you have a number. At 24.0 grains per gallon — the top of that range, because a softener sized for the soft months lets hardness through in the hard ones — a household using the EPA average of more than 300 gallons a day sends roughly 7,200 grains of hardness through its plumbing every day. Over a year that is about 375 pounds of scale-forming calcium and magnesium passing through the water heater and the fixtures.
Against that load a 32,000-grain softener would regenerate roughly every 4.4 days and a 48,000-grain unit about every 6.7 days. Those are first estimates off the figure St. George publishes, not a quote: your own use, any iron in the water, and whether you want softened water at the kitchen tap all move the answer, which is why we measure at your tap before sizing anything.
What CASA recommends in St. George
A softener sized to St. George’s published hardness is the first thing worth doing here. Add reverse osmosis at the sink for drinking water and whole-home carbon for chlorine.
Water hardness in nearby cities
St. George water hardness FAQ
How hard is the water in St. George, Utah? St. George is published at 13-24 grains per gallon. Source: sgcity.org · 2024
Where does St. George get its drinking water? Published as the recommended softener setting range; most customers get a groundwater and surface water mix part of the year.
Do I need a water softener in St. George? Only your own reading answers that. We measure at the tap and size to what we find.
How do I find my exact hardness? A free water test at your own tap. We write the number down and size from it. What the bands mean.
Free St. George water test
We measure your exact hardness and recommend the right system — no pressure, flat written quote.
