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Why Is Wichita Falls Water So Hard, and What to Do About It

July 23, 2026 · 7 min read

If you have moved to Wichita Falls from somewhere with soft water, you have probably already noticed it: scale on the taps, spots on the glasses, soap that will not lather, and a water heater that grumbles. The water here is genuinely, measurably some of the hardest in Texas, and it quietly costs homeowners real money. Here is the full picture.

Just how hard is it

Water hardness is measured in grains per gallon. Anything above about 10.5 grains per gallon is classed as "very hard." Wichita Falls water is reported at around 69 grains per gallon, roughly 1190 parts per million. That is about six times the very-hard threshold, and it puts the local supply among the hardest municipal water anywhere in Texas.

It comes from the region's surface reservoirs, Lakes Arrowhead and Kickapoo, which have supplied the city for decades. To be clear, this is not a safety problem. The City holds a Superior Water System rating, the highest the state gives, and hard water is a nuisance rather than a health hazard. But a nuisance at 69 grains per gallon is a serious nuisance.

The short version: the calcium and magnesium dissolved in the water are harmless to drink, but the moment you heat the water or let it sit, they come out of solution and stick to everything. That is scale, and it is behind most of the plumbing complaints in this city.

What it does to your home

Hard water works quietly, on everything the water touches, all the time. The damage adds up in four main places.

Your water heater

This is where hard water costs the most. Scale settles on the elements of an electric heater and blankets the floor of a gas one, insulating the water from the heat source. The unit runs longer and hotter to do the same job, which raises your bill, and the trapped sediment makes the tank rumble and shortens its life. It is the main reason heaters here often fall short of their rated years. If yours has started making noise, we cover exactly why in our guide to water heater noise, and proper water heater service can flush it and check the damage.

Your fixtures

Every tap, valve and shower head has water sitting against its sealing surfaces permanently, and scale builds on exactly the surfaces that need to stay smooth. Cartridges lose their seal and drip, aerators clog and drop the pressure at one tap, and shower valves stiffen until the handle will not turn. It is why fixture parts here wear out sooner than the packaging suggests, and why a lot of faucet and fixture repair in this city traces straight back to the water.

Your appliances

Dishwashers and washing machines have heating elements too, and they scale the same way. Hard water also means you use more detergent and more soap to get the same result, because the minerals fight the lather. Over the life of the appliances, that is a real cost.

Everyday annoyances

The white crust on the shower screen, the film on the glassware, the soap that will not rinse clean. None of it is dangerous, but all of it is the same 69 grains per gallon doing its work.

What actually helps

There are two levels of response, and the right one depends on how much you want to solve.

  • Maintenance. Flushing your water heater annually keeps the sediment layer thin and extends its life, and it is a quick job. Descaling shower heads and cleaning aerators keeps your pressure up. This manages the symptoms.
  • A water softener. This treats the cause. A softener removes the calcium and magnesium before the water reaches your heater, fixtures and appliances, so the scale never forms in the first place. In a supply this hard it is one of the few plumbing purchases that genuinely pays back over time.

If you are replacing a water heater anyway, that is the ideal moment to add a water softener, because you are protecting the new investment from day one instead of starting the clock again on scale damage.

One honest caveat: a softener prevents new scale, it does not remove what has already built up inside an old heater. If your current heater is already rumbling heavily and losing capacity, a softener protects the next one rather than saving this one. That is exactly why fitting the two together makes sense.

Questions

Wichita Falls Hard Water Questions

How hard is Wichita Falls water?

Very hard. It is reported at around 69 grains per gallon, roughly 1190 parts per million. Since anything above about 10.5 grains per gallon is already classed as very hard, the local supply is around six times that threshold, which puts it among the hardest municipal water in Texas. It is drawn from the surface reservoirs at Lakes Arrowhead and Kickapoo, which have supplied the city for decades.

Is hard water in Wichita Falls safe to drink?

Yes. Hard water is a practical nuisance, not a health hazard, and the City of Wichita Falls holds a Superior Water System rating, the highest classification the state gives. The dissolved calcium and magnesium that make the water hard are not harmful to drink. The problems hard water causes are all practical ones: scale, shortened appliance life, poor lathering and worn fixtures, rather than anything to do with safety.

Do I really need a water softener in Wichita Falls?

In a supply this hard, a softener is one of the few plumbing purchases that genuinely pays back, rather than being an upsell. Scale is the main reason water heaters here fall short of their rated life, and the same scale affects fixtures, valves, dishwashers and washing machines. The best time to fit one is alongside a new water heater, so you protect the new unit from day one instead of letting scale start shortening its life immediately.

What are the signs of hard water in my home?

White chalky scale on taps and shower screens that comes back within a week of cleaning, spotting on glassware, soap and detergent that will not lather properly, a water heater that rumbles or pops, and fixtures that wear out and drip sooner than they should. All of these trace back to the mineral content of the water, and in Wichita Falls, at around 69 grains per gallon, they show up faster and more strongly than in most places.

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