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Remove Packing Nut and Old Seals — Remove the Old Faucet Body

Beginner3 hours

Part of project

How to Replace a Bathtub Faucet: A Step-by-Step DIY Guide · Step 4 of 6

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In this video

After removing the handle, unscrew the large packing nut surrounding the faucet stem. This may be done by hand or with pliers/wrench. Once the nut is off, use a small screwdriver to carefully pry out the old packing gasket from inside the faucet body and remove the old O-ring from the nut you just removed. Inspect them for cracks and wear.

Goal: Inspect the Seals

  • Note the color of your packing nut. In the video, white nuts are right-hand threaded and tan nuts may be left-hand threaded.

Used in this video

  • Pliers (Tool Type: Pliers) · optional — Gripping and turning the packing nut if it's too tight to remove by hand.
  • Screwdriver (Tool Type: Screwdriver) — Prying out the old packing gasket.
  • Socket Wrench Set (Tool Type: Hand Tools, Size/Capacity: 7/8-inch socket) · optional — Unscrewing the packing nut.
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FAQs

Is replacing a bathtub faucet truly a beginner-friendly DIY project, and what's a realistic time frame for completion?

Yes, it's generally considered beginner-friendly, especially with clear instructions. While estimated at 3 hours, allow for extra time if you encounter rusted parts or need to locate the main water shut-off. Patience is key for a successful first-time installation.

Beyond basic screwdrivers, what are the most crucial tools for this bathtub faucet replacement that I might not already own?

An adjustable wrench is essential for loosening and tightening nuts, while plumber's putty is critical for creating a waterproof seal. You might also find a basin wrench helpful if working in very tight spaces, though not always strictly required for all faucet types.

What should I do if I can't find individual shut-off valves for my bathtub faucet, or if they don't work?

If local shut-off valves are absent or faulty, you must turn off the main water supply to your entire house. After turning off the main supply, open a faucet on the lowest level of your home to drain any remaining water from the pipes before proceeding with the replacement.

What is the most common mistake that leads to leaks after installing a new bathtub faucet, and how can I prevent it?

The most common mistake is not fully tightening all connections or improperly applying plumber's putty. Ensure all nuts are snug (but don't overtighten) and that plumber's putty forms a complete, even seal around the faucet base. Always test slowly after turning water back on and inspect thoroughly for drips.

Transcript
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one's probably been in say 20 years 20 years has any service done ok so here's here's the nut this is a right hand tight nut so when you turn it right it tightens they're also left hand and I think those are usually tan so you might see a white one which is the right hand tighten or a tan one which would be a left hand tighten this one at least was him loose that alone can be your source so you could tighten this down and see if that stops your leak by putting the handle back on screaming back down turning the stem see if that stops your leak I'm gonna actually remove this which you can remove with a pair of pliers or this is actually if you already have your socket set out 7/8 so a 7/8 socket fits this knot I'll take it out when I'm looking for is the o-ring and gasket I want to see the condition of those if those look bad that's probably going to be the the issue okay here's the o-ring don't even look too bad now there's the gasket that already looks a little dried out let me try to take it out of there yep okay you see it's it's got cracks in it chunks missing broken so that is definitely not going to make a good seal and that's most likely the source of our our problem I did grab a repair kit here the house - all the parts we need to go ahead and make it actually has many of the parts for the kind of tan one there is the left hand tighten nut we have the white one so that's the right hand tighten nut and many other components you can actually rebuild you can remove this entire stem and then there's some additional gaskets in there that you can rebuild we're just gonna do this nut and see if that works for us so I grabbed

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