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How to fix shut-off valve

Plumbing

The answer to 'how to fix shut-off valve' is to first turn off the water supply to the valve, then remove the valve handle, packing nut, and valve stem. Clean the valve seat and stem, apply plumber's grease, and reassemble the valve. If the valve is damaged or leaking, it may need to be replaced.

Shut-off valves are an essential plumbing component that allow you to isolate water flow to specific fixtures or areas of your home. Properly maintaining and repairing them is important to prevent water damage and ensure your plumbing system functions reliably.

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Step-by-Step Guide

  1. 1

    Turn off water supply

    Locate the main water shut-off valve for your home and turn it clockwise to the closed position.

  2. 2

    Remove valve handle

    Use pliers or a wrench to remove the valve handle.

  3. 3

    Remove packing nut and valve stem

    Unscrew the packing nut and pull out the valve stem.

  4. 4

    Clean valve seat and stem

    Use emery cloth or fine sandpaper to clean the valve seat and stem, removing any corrosion or buildup.

  5. 5

    Apply plumber's grease

    Apply a thin layer of plumber's grease to the valve stem and seat to help it move smoothly.

  6. 6

    Reassemble valve

    Replace the valve stem, packing nut, and handle, and turn the water back on to check for leaks.

Frequently Asked Questions

How often should I check my shut-off valves?

It's a good idea to check your shut-off valves periodically, at least once a year, to ensure they are functioning properly.

When should I call a plumber to fix a shut-off valve?

If the valve is stuck or damaged and cannot be repaired, or if you are not comfortable performing the repair yourself, it's best to call a licensed plumber.

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