Why Does San Tan Valley Have Such Hard Water?

San Tan Valley has very hard water - among the hardest in the country - because Arizona's groundwater picks up high levels of dissolved calcium and magnesium as it moves through the region's mineral-rich soil and rock. That hardness is what leaves scale on your fixtures, spots on your dishes, and wears out your water heater early. Here's why our water is so hard and what you can do about it.

Water hardness comes from minerals the water absorbs underground. Arizona's arid climate, limestone-rich geology, and reliance on groundwater and Colorado River water all contribute to high mineral content. In much of San Tan Valley, hardness runs well above the 7 grains-per-gallon threshold that defines "hard" water - often far higher.

• Scale buildup on faucets, shower heads, and inside pipes.
• Water heaters that fail early as sediment hardens in the tank.
• Spotty dishes and glassware and film on shower doors.
• Soap that won't lather, plus dry skin and dull hair.
• Appliances - dishwashers, washers, coffee makers - wearing out faster.
• Reduced water pressure as scale narrows pipes and clogs aerators.

Yes - hard water is safe to drink and isn't a health hazard. The minerals are actually things like calcium and magnesium. The problem with hard water is what it does to your plumbing, appliances, and cleaning - not your health. Many homeowners add a drinking-water filter for taste, separate from a softener that protects the plumbing.

• Install a water softener to remove the minerals before they scale up your home - the most effective fix.
• Flush your water heater annually to clear sediment.
• Clean aerators and shower heads with vinegar to dissolve scale.
• Add a drinking-water filter (carbon or reverse osmosis) for taste.

A softener is often the smartest long-term investment here, since it extends the life of your water heater and fixtures.

Az Express Plumbing can test your water and recommend the right softener or filtration for your home. See our water heater services or how hard water affects your faucets and fixtures, or call (480) 771-7519.

Yes - hard water is safe to drink. The minerals are calcium and magnesium. The problem is what it does to your plumbing and appliances, not your health.

Common signs include white scale on faucets, spotty dishes, soap that will not lather, and a water heater that wears out early. A water test confirms the hardness level.

A water softener is the most effective solution - it removes the hardness minerals before they scale up your home. A drinking-water filter can be added for taste.

• Water Softener Installation Cost
• Reverse Osmosis vs. Water Softener