Water Softeners and Filtration in Southlake, TX
Southlake's tap water comes from Fort Worth. Its 2025 report covers three things homeowners here notice: hardness, the disinfectant, and the earthy or musty taste that shows up at times.
Get your free water testWhat's in Southlake Water
The City of Southlake says plainly that it gets all its water from the City of Fort Worth's Water Department. Its 2025 water quality report lists hardness and disinfectant figures for Southlake's tap water.
Hardness
6 to 9grains per gallon
108 to 150 ppm, Southlake 2025 report
Chloramines
2.3ppm average
Range 0.5 to 3.4 ppm, 2025
Hard Water in Southlake
At 108 to 150 ppm, Southlake water starts in the upper part of the U.S. Geological Survey's moderately hard band and reaches into hard. The upper end, 9 grains, is inside the 7 to 10.5 grain range the Water Quality Association calls hard. When hard water is heated, USGS notes, solid calcium carbonate deposits can form, which is why water heaters collect scale.
Why Southlake Water Can Taste Earthy
Southlake's report explains that taste and odor changes, described as earthy or musty, come from naturally occurring algae growth in one of the sources, such as Eagle Mountain Lake. Odor falls under the EPA's secondary standards, set at 3 threshold odor numbers for a musty or chemical smell; the EPA does not enforce those levels and does not consider odor at that level a risk to human health. The city's turbidity readings stayed low in 2025, with a highest single reading of 0.29 NTU and 99.99 percent of samples at or under 0.3 NTU.
A Disinfectant That Stays Put
Southlake's water carries chloramines, averaging 2.3 ppm in 2025. Unlike plain chlorine, an archived EPA page notes, chloramines do not rapidly dissipate when water stands and do not dissipate by boiling, so leaving a pitcher in the fridge will not clear it quickly.
The Only Way to Know Your Number
Citywide report figures cannot tell you what your own plumbing delivers. We test your Southlake tap for hardness, chlorine, iron and sediment at no charge, then recommend a system with no pressure to buy.
What We Install in Southlake
The test decides which of these belong in your home.
Water Softeners
Soft water for skin, hair and laundry, and an end to scale building up on the water heater, dishwasher and fixtures.
Whole-Home Filtration
Treats the water once at the main line to take out iron and sediment for every tap in the house.
Drinking Water Systems
Reverse osmosis at the kitchen sink for drinking water, cooking, coffee and ice.
Southlake Water Questions
Where does Southlake get its water?
All of it comes from the City of Fort Worth's Water Department, according to Southlake's 2025 water quality report.
Do I need a water softener in Southlake?
Southlake's water measures 6 to 9 grains per gallon. USGS says hardness is not a health concern but can be a nuisance, so a softener is about scale, spots and soap. The free in-home test gives you your own reading.
Why does Southlake tap water sometimes taste earthy or musty?
Southlake's report attributes it to naturally occurring algae growth in a source such as Eagle Mountain Lake.
Will boiling or letting Southlake water sit remove the disinfectant?
Not quickly. Southlake uses chloramines, and an archived EPA page says chloramines do not rapidly dissipate on standing and do not dissipate by boiling.
We Also Serve
Southlake sits between Keller and Grapevine, and we cover both. Nearby pages:
Book a Free In-Home Water Test
Free in-home water tests are available for homes in Southlake and across Dallas-Fort Worth.
What happens next
- 1We test your waterIn your home, for hardness, chlorine, iron, and sediment.
- 2We recommend a systemA softener, filtration, reverse osmosis, or a combination. No pressure to buy.
- 3We install itClean, and we walk you through how it works.