How To Fix A Leaky Shut Off Valve Under Bathroom Sink

By | July 23, 2021

How to Fix a Leaky Shut-off Valve Under Bathroom Sink

A leaky shut-off valve under a bathroom sink can be a frustrating and potentially costly problem. Here are the essential aspects to consider when fixing it:

Tools and Materials:

Gather the necessary tools and materials before starting the repair. You will need a wrench, replacement washer, valve packing, and a flashlight.

Identify the Leak:

Locate the source of the leak precisely. Check the packing nut, stem washer, and valve seat for any signs of damage or wear.

Isolate the Water Supply:

Turn off the main water supply valve to prevent water from flowing into the sink. Open the faucet to release any remaining pressure.

Remove Packing Nut:

Using a wrench, carefully unscrew the packing nut that holds the valve stem in place. Remove the old packing and discard it.

Replace Washer:

Inspect the stem washer for damage or wear. Replace it with a new washer of the same size and material.

Tighten Packing Nut:

Apply valve packing to the stem threads and hand-tighten the packing nut. Use a wrench to tighten it further, but do not overtighten.

Tighten Packing Nut:

Apply valve packing to the stem threads and hand-tighten the packing nut. Use a wrench to tighten it further, but do not overtighten.

Inspect for Leaks:

Turn on the water supply and check for leaks. Tighten the packing nut further or replace the washer if the leak persists.

Conclusion:

Fixing a leaky shut-off valve under a bathroom sink requires careful attention to these essential aspects. By following these steps, you can effectively resolve the issue and prevent further water damage.


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