Prevent a Potential Flood by Replacing Your Water Heater's Corroded Nipple Fitting

How to Replace a Corroded Water-Heater Fitting | This Old House · 3:12 · Video: This Old House · Watch at the source

In short: Plumbing expert Richard Trethewey demonstrates how to identify and replace a rusted, ready-to-burst nipple fitting on a water heater. This essential maintenance task helps homeowners avoid the significant damage caused by a burst pipe, using common materials found at local plumbing supply stores.

Corrosion on water heater fittings can compromise the integrity of the entire system, creating a risk of failure. Richard Trethewey shows the process of swapping out a damaged nipple for a new one, ensuring the connection remains secure. The project requires specific components, including copper pipe, a threaded fitting, a coupling, lead-free solder, and flux.

To complete the repair, a close-quarter tubing cutter is necessary for working in tight spaces. Necessary components like dielectric nipples and anode rods are widely available at home centers. Addressing these small maintenance issues promptly is a core focus of the Ask This Old House series, which provides practical solutions for common household plumbing and heating problems.

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