How to Pack a Water Shutoff Valve

Co-authored by David Balkan

Last Updated: October 21, 2024 References

Dripping faucets cost money, not to mention the damage those annoying drops can do to your sanity. Following these steps will save your wallet...and your mind!

Steps

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You may need to shut off water to the entire house if there is no cut off for the line.^{[1]
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Expert Source

David Balkan
Professional Plumber & CEO of Balkan Sewer & Water Main

Expert Interview}^{[2]
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Research source} Open a faucet to relieve back-pressure on water line.
The packing cap is the cap just below the handle. The packing material is behind the nut and one washer.^{[3]
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Don't damage brass surfaces. Use a toothpick or dowel rod to clear compacted material.^{[4]
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Do not over-tighten.^{[6]
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Question

Can I use white teflon packing? Is there a washer in the packing nut, and should it be replaced?

Community Answer

Yes. White teflon packing string is preferred. And yes, if your faucet has a washer under the packing nut, it should be taken to the store and matched up to a replacement.

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Question

What if the main water shut off valve is leaking?

Community Answer

Then you have to have to turn the water off at the street. You would either have to contact the water utility for this, or they may allow a master plumber to do so.

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Question

What if I cannot shut off the valve to the toilet but need water for the rest of the house?

Community Answer

You’ll have to shut off the main to repair the shut off valve to the toilet.

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