If you’ve noticed white crust on your faucets, spots on your dishes, or a water heater that rumbles and pops, you’re seeing the effects of hard water. Las Vegas has some of the hardest tap water in the country, and over time it takes a toll on your plumbing.
How Hard Is Las Vegas Water?
According to the Las Vegas Valley Water District, local water measures roughly 280–291 parts per million, or about 16–17 grains per gallon, which is classified as very hard. About 90% of the valley’s water comes from Lake Mead, and it carries dissolved calcium and magnesium picked up along the Colorado River.
Hard water is safe to drink. The problem is what those minerals leave behind: scale.
How Hard Water Affects Your Plumbing
Water Heaters
When water is heated, minerals settle out and collect at the bottom of the tank as sediment. That layer makes the burner or elements work harder, lowers efficiency, and can cause rumbling or popping noises. Left alone, scale buildup can shorten the life of the tank. If your water heater is noisy, slow to heat, or showing rust-colored water, it may be time for water heater service.
Faucets, Showerheads, and Fixtures
Scale clogs faucet aerators and showerhead nozzles, which reduces flow and pressure. It also wears out cartridges and valves, leading to drips and leaks. Stubborn buildup is a common reason homeowners call us for faucet and fixture repair.
Pipes and Appliances
Over many years, scale can narrow the inside of pipes, especially older galvanized lines, and it shortens the life of dishwashers, washing machines, ice makers, and evaporative coolers.
Signs Hard Water Is Affecting Your Home
- White or chalky crust on faucets and showerheads
- Spots and film on dishes and glassware
- Weak water pressure at one or more fixtures
- Rumbling, popping, or crackling from the water heater
- Soap that doesn’t lather well and a filmy feel after showering
- Frequent fixture leaks or worn-out cartridges
How to Protect Your Plumbing From Hard Water
- Flush your water heater yearly. Draining a few gallons from the tank removes sediment before it hardens.
- Descale tankless water heaters. Follow the manufacturer’s descaling schedule, which is often more frequent in hard water areas.
- Clean aerators and showerheads. Soak them in white vinegar for an hour to dissolve mineral deposits.
- Consider water treatment. A whole-home water softener or scale-reduction system reduces buildup throughout the house. A reverse osmosis system under the sink improves drinking water but does not protect the rest of your plumbing.
- Watch for small leaks. Scale-worn valves and fittings often start with a slow drip. Catching it early prevents water damage and higher bills. If you suspect a leak you can’t find, our leak detection team can help.
Need a Hand? Talk to a Live Person 24/7
Phoenix Plumbing serves Las Vegas homes and businesses. We’re licensed and insured (NV License #0088518) and provide free estimates. Call (702) 617-1500 or request service online.