How to replace a leaking kitchen sink shutoff valve

How to Rebuild a Shut Off Valve | Ask This Old House · 4:16 · Video: This Old House · Watch at the source

In short: When a valve fails, you do not always need a plumber. This video demonstrates the step-by-step process of replacing a shutoff valve underneath a kitchen sink using common household tools.

Plumbing expert Richard Trethewey guides a homeowner through the essential sequence of a valve rebuild. The process begins with shutting off the main water supply to the house and removing the valve handle with a screwdriver. After loosening the gland nut with a wrench, the old valve is removed and replaced with a new one from a repair kit.

The repair concludes by tightening the gland nut, reattaching the handle, and restoring the water supply. All necessary tools, including a wrench and screwdriver, are readily available at plumbing supply stores or home centers.

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