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What do galvanized pipes look like?

When first installed, galvanized pipes looks similar to a nickel in color. But as it ages, galvanized pipe may appear much duller, lighter, or darker, depending on its environment. We’ve also seen homes where the water pipes have been painted, so it can be difficult to tell at first glance.

How can I tell if I have galvanized pipes?

If you can’t tell by looking at your pipes, there is a quick test to tell if they are galvanized. Simply grab a flat head screwdriver and a strong magnet. Start by finding your water line and scratch the outside of the welded steel pipe with the screwdriver. Compare your results:

Copper

The scratched area will look like a copper penny.

A magnet will NOT stick to it.

Plastic

The scratched area will appear ivory or white in color.

A magnet will NOT stick to it

Galvanized steel

The scratched area will have a silver-gray color.

A strong magnet will stick to it.