Why Does The Water From Your Electric Water Heater Taste Like Metal (And The Repair Options)

Have you ever poured yourself a glass of hot water or stepped into the shower only to notice that metallic taste or smell? 

You’re not imagining things if your hot water tastes like metal; your water heater might be trying to tell you something. 

Let’s talk about why that happens and what you can do about it before the problem gets worse.

What Causes A Metallic Taste In Hot Water?

1. The Anode Rod Is Corroding

Inside your electric water heater, there’s a component called an anode rod. Its job is to corrode in place of your tank, protecting it from rust. 

Over time, the rod breaks down and stops doing its job. When that happens, the tank starts to corrode, and metal ions like iron and zinc can leach into the water, giving it that unpleasant metallic taste.

2. Tank Corrosion

If your water heater is older or hasn’t been flushed in a while, corrosion may have started inside the tank itself. Rust particles from the tank can mix with your hot water, especially if the protective lining has worn away. Once corrosion sets in, it tends to spread quickly.

3. High Mineral Content

Sometimes, the metallic taste has nothing to do with your water heater at all. If your home’s water supply naturally contains high levels of minerals like iron, manganese, or zinc, that mineral-rich water can taste metallic, especially when heated.

4. Corroded Pipes

If your home has old copper or galvanized steel plumbing, corrosion inside the pipes could be adding a metallic flavor to your water. When the metal wears away, tiny flakes can break off and end up in your faucets.

Repair Options To Restore Clean, Fresh-Tasting Water

Flush The Tank

Sediment and rust can build up at the bottom of your tank. Flushing your water heater helps clear out that buildup and improve water quality. This should be done at least once a year — or more often if your water has a lot of minerals.

Replace The Anode Rod

If the anode rod has worn out, a professional can replace it. This is one of the best ways to extend the life of your tank and stop that metallic taste at the source.

Add A Water Filter

Installing a whole-home or under-sink water filter can help remove metal ions and improve the overall taste and safety of your water. It’s a smart add-on if you live in an area with naturally hard or mineral-heavy water.

For fast, professional water heater repair and inspection, call Service Wizard Heating and Air Conditioning. We’ll help you restore clean, great-tasting hot water and peace of mind.