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Test and Troubleshoot — Test the New Shower Knob and Check for Leaks

Beginner

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Shower Knob Repair & Replacement: A Step-by-Step DIY Guide · Step 4 of 4

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In this video

Turn on the hot and cold water to test the new showerhead. Operate the diverter valve to direct water to the showerhead. Carefully inspect all the new connections for any drips or leaks. If a leak is found, as it was in the video at the showerhead connection, turn off the water, disassemble the leaking connection, add Teflon tape to the threads, and reassemble. Test again to ensure the leak is resolved.

Goal: Test for leaks

  • If you find a leak, turn off the water supply before attempting to tighten or fix the connection.
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FAQs

Why is it so important to turn off the water supply before starting, and what if I can't find the shut-off valve?

Turning off the water supply is crucial to prevent flooding and serious water damage during the repair. If you can't find local shut-off valves near your shower, you'll need to turn off the main water supply to your entire home, usually found near your water meter or hot water heater.

What should I do if the screws on my old shower knob are stripped or stuck, making them difficult to remove?

If screws are stripped, try placing a wide rubber band flat over the screw head to provide extra grip for your screwdriver. For stuck screws, a little penetrating oil applied and left to sit for a few minutes can help loosen them. In more stubborn cases, a screw extractor kit may be necessary.

How long does this shower knob repair project typically take for a beginner, and what's the average cost?

For a beginner, this project usually takes about 30-60 minutes, assuming you have all the necessary tools and the new knob on hand. The cost largely depends on the new shower knob, which can range from $15 for a basic model to $50+ for more decorative or brand-specific replacements.

Do I need the exact 'Milwaukee 8 in. x 3/8 in. Slotted Flat Head Screwdriver' mentioned, or will any flathead work?

You do not need that exact brand or model of screwdriver. Any standard flathead screwdriver with a tip width of approximately 3/8 inch and a Phillips head screwdriver of appropriate size for your knob's screws will work. The Milwaukee tool is simply an example of a suitable option.

Transcript
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or fill the tub up with so let's try it and see if we get wet we got the shower and I do see a leak it's got a leak right here so we're going to turn it back off and make sure I know where the leak's coming from it's coming from up here on the top so we'll shut this back off and we're going to pull this off here right in here we got a little bit of a leak that o-ring that's in there it's like a water hose o-ring it's not really thick but what I'm going to do is I'm going to take some thread tape and put on this piece here and see if we can get it to stop leaking that's right on that end of the head right there all right with a little bit of thread tape we got it fixed now we have a shower we can change the flow of the shower works pretty good I think we'll be happy with that so we just turn a bathtub just from just a

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