Skip to main content

Restore Water and Test — Test the Faucet for Leaks

Beginner3 hours

Part of project

How to Replace a Bathtub Faucet Valve: A Step-by-Step DIY Guide · Step 5 of 5

Helpful?

In this video

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

5.6K views632 minutes
This Old House

2.2M subscribers

View Channel

FAQs

What specific type of replacement valve should I buy for my bathtub faucet, and are the listed tools all I'll need?

You must purchase a replacement valve that is compatible with your specific bathtub faucet brand and model. Take a photo of your existing valve or faucet to a plumbing supply store for an exact match. The listed tools (adjustable wrenches, screwdriver) are essential, but also have penetrating oil and a utility knife on hand for stubborn parts.

What's the most critical safety step, and how can I avoid common beginner mistakes like leaks after installation?

The most critical safety step is ensuring both hot and cold water supplies are completely shut off before starting, then double-checking by trying to turn the faucet on. To avoid leaks, ensure the new valve is properly seated and the retaining nut is snug, but do not overtighten. Test for leaks slowly as you turn the water back on, inspecting carefully.

The project is rated 'beginner' but estimated at 3 hours. What makes it take that long, and what if screws or nuts are corroded?

While the steps are straightforward for a beginner, unexpected issues like corroded screws or a seized retaining nut can significantly extend the time. Using penetrating oil and letting it sit for 15-30 minutes can help loosen stubborn parts. Patience and having the right-sized adjustable wrench are key to success.

I'm struggling to remove the old valve even with a wrench and penetrating oil. Are there any alternative methods or tools I should try?

If the retaining nut or valve is extremely stubborn, you might need a specialized valve puller tool, which can often be rented or purchased at a hardware store. Ensure you're turning the nut counter-clockwise. If the new valve doesn't fit, double-check its compatibility with your faucet model, as slight variations can prevent proper seating.

Transcript
Hide

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.

Auto-generated transcript. May contain errors.