How Often Should I Flush My Water Heater in Phoenix?

Hard water is a big issue in Phoenix and the surrounding areas. With high mineral levels in the water, sediment builds up inside water heaters faster than in many other parts of the U.S. If you’ve never flushed your water heater or you’re not sure how often to do it, this guide will help you protect your system and avoid expensive repairs.

Why Flushing Your Water Heater Is Important

Sediment naturally settles at the bottom of your water heater tank. In Phoenix, sediment builds up much faster due to the city’s extremely hard water.

Here’s why flushing matters:

• Prevents overheating – Sediment forces the heater to work harder, causing heating issues and energy waste.

• Extends the lifespan – A clean tank lasts years longer than a neglected one.

• Improves hot water quality – Removes rust, minerals, and dirty water.

• Keeps energy bills lower – Less buildup means your heater uses less gas or electricity.

• Reduces risk of tank failure – Prevents pressure problems, leaks, and tank damage.

How Often Should You Flush Your Water Heater in Phoenix?

Because Phoenix has some of the hardest water in the country, the recommended flushing schedule is:

Gas or Electric Tank Water Heaters

• Every 6 months for Phoenix homes

• Every 12 months in areas with softer water

• Every 3 months, if your home has extremely hard water and no water softener

Tankless Water Heaters

Tankless systems need the heat exchanger descaled once a year, or every 6 months in high-mineral households.

Signs Your Water Heater Needs Flushing

If you notice any of the following, it’s overdue:

• Popping or rumbling sounds

• Slow hot water recovery

• Cloudy or sandy hot water

• Fluctuating water temperature

• Higher energy bills

• Reduced water pressure on hot water taps

If any of these are happening, flushing the tank can often fix the problem immediately.

Benefits of Professional Water Heater Maintenance

Hiring a Phoenix plumber for routine maintenance ensures:

• Complete flushing of all sediment

• Inspection of burner, vents, anode rod, and valves

• Longer water heater lifespan

• Safe operation of gas or electric connections

• Early detection of leaks or corrosion

Many water heaters fail early simply because they were never cleaned.

If your water heater is showing signs of sediment buildup, or it’s been more than a year since its last flush.

Call Vertical Plumbing at (480) 577-8720