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Restore Water and Test — Test for Leaks and Diverter Function

Beginner2 hours

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Tub Spout & Diverter Installation: A DIY Guide · Step 6 of 6

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Turn the water supply back on, either at the local shut-off valves or the main valve. Slowly open the valves to avoid water hammer. Check the faucet for any leaks around the handle or from the spout. If there is a leak from the handle, you may need to slightly tighten the bonnet nut. Turn the handles on and off to test the operation and ensure the leak has been fixed.

Goal: Verify the repair and check for leaks

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FAQs

How do I determine if my existing tub spout is threaded or slip-on, and how does this affect removal and installation?

A threaded tub spout will unscrew counterclockwise, often revealing male threads on the pipe coming from the wall. A slip-on spout usually has a small set screw underneath that, when loosened, allows the spout to be pulled off. Knowing the type is crucial for choosing the correct replacement and preparing the appropriate tools for removal.

Why is it crucial to clean the copper pipe and apply plumber's tape, and what if I skip these steps?

Cleaning the copper pipe with a wire brush or emery cloth removes debris and corrosion, creating a smooth, optimal surface for a seal. Plumber's tape (2-3 wraps clockwise) lubricates the threads and fills microscopic gaps, ensuring a watertight connection. Skipping these steps significantly increases the likelihood of leaks, potentially leading to costly water damage behind your wall.

What specific tools will I absolutely need for this tub spout installation project?

You will primarily need an adjustable wrench for both removal and installation, along with a wire brush or emery cloth to clean the copper pipe. If your existing spout is soldered on, you'll also need a pipe cutter. Don't forget plumber's tape, which is essential for ensuring a watertight seal on threaded connections.

What should I do if I encounter a leak after installing the new tub spout and turning the water back on?

Immediately turn off the main water supply again. If threaded, carefully remove the spout, re-clean the pipe, apply fresh plumber's tape (2-3 turns clockwise), and re-tighten the spout, ensuring it's snug but not overtightened. For slip-on spouts, verify the set screw is tight and the spout is fully seated on the pipe, checking any internal O-rings.

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or quarter turn. Don't get this too tight. You can always tighten a little bit more. Now it's time to turn the water back on. When I got back from turning the water back on I did have a leak but it wasn't coming out the spick it so we're good to go and it's really as simple as that. It only takes a few minutes and only a few cents if you buy that kit on Amazon and you'll be ready to bust out your plumbing bag and fix it in no time. Speaking of bags you make it a kick out of watching my handyman tool bag tour. I'm sure I have a few tools that you need in your bag.

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