Delta Tub Spout FIX: Replace Plastic Insert Like A PRO!

The longevity of a Delta Faucet depends significantly on maintaining its components, and often, the delta tub spout plastic insert is a key element needing attention. Properly addressing this insert issue involves understanding its function within the plumbing system. For successful repairs, you’ll want to have the right tools on hand, ensuring that replacing the insert becomes a manageable task. Many homeowners find that understanding these specifics helps them address the fix efficiently, avoiding the need to call a costly plumber.

One Inch Tub Spout

Image taken from the YouTube channel Plumbing Parts Pro , from the video titled One Inch Tub Spout .

Delta Tub Spout FIX: Replace Plastic Insert Like A PRO!

This guide provides a step-by-step breakdown on how to replace the plastic insert in your Delta tub spout, focusing on easy understanding and practical application. A worn or broken delta tub spout plastic insert can cause leaks, reduced water pressure, or even a whistling sound. Replacing it is often simpler and cheaper than replacing the entire tub spout.

Identifying the Problem: Is it the Plastic Insert?

Before diving into the replacement, it’s important to confirm that the delta tub spout plastic insert is indeed the culprit.

  • Check for Leaks: Water dripping from around the spout even when the shower is off is a common indicator.
  • Reduced Water Pressure: If water pressure has decreased noticeably, the insert could be partially blocked or damaged.
  • Unusual Noises: A whistling or gurgling sound coming from the spout can sometimes point to a faulty insert.
  • Visual Inspection: Remove the spout (instructions below) and visually inspect the delta tub spout plastic insert for cracks, breaks, or excessive wear.

If any of these issues are present and the insert shows signs of damage, replacement is likely the solution.

Tools and Materials You’ll Need

Gathering the right tools beforehand will make the process smoother and more efficient.

  • New Delta Tub Spout Plastic Insert: This is the essential component! Ensure it’s the correct replacement part for your specific Delta tub spout model. Check your spout model number or consult Delta’s website for compatibility.
  • Screwdriver: Usually a flathead or Phillips head, depending on how your tub spout is attached.
  • Pliers (Optional): Helpful for gripping stubborn spout connections. Protect the spout finish with a cloth.
  • Adjustable Wrench (Optional): For loosening threaded connections if pliers aren’t sufficient. Protect the spout finish with a cloth.
  • Clean Cloth or Rag: For cleaning and protecting surfaces.
  • Silicone Grease (Optional): For lubricating the new insert for easier installation.
  • Pen or Marker (Optional): For marking the spout’s original position (especially for set-screw models).

Removing the Old Tub Spout

The removal process depends on the type of Delta tub spout you have. The two main types are:

  1. Slip-Fit Spout (with Set Screw): This type is secured with a small screw, usually on the underside of the spout.
  2. Threaded Spout: This type screws directly onto the pipe coming out of the wall.

Removing a Slip-Fit Spout (with Set Screw)

  1. Locate the Set Screw: Look for a small screw, usually on the bottom or back of the spout, near where it meets the wall.
  2. Loosen the Set Screw: Use the appropriate screwdriver to loosen the set screw. Do not remove it completely.
  3. Pull the Spout Off: Gently pull the spout straight off the pipe. It may require some wiggling.
  4. If Stuck: If the spout is stuck, try gently twisting it back and forth while pulling. Avoid excessive force. Marking the spout’s original position with a pen or marker beforehand can help with reinstallation.

Removing a Threaded Spout

  1. Grip the Spout: Use pliers or an adjustable wrench to grip the spout firmly. Protect the spout’s finish by wrapping it in a clean cloth.
  2. Unscrew the Spout: Turn the spout counterclockwise to unscrew it from the pipe.
  3. If Stuck: Apply penetrating oil (like WD-40) around the threads and let it sit for a few minutes before trying again.

Removing the Old Delta Tub Spout Plastic Insert

Once the spout is removed, you can access the delta tub spout plastic insert.

  1. Locate the Insert: The insert will be visible inside the spout’s opening, where it connects to the pipe.
  2. Remove the Insert: Depending on the design, the insert may simply slide out. If it’s stuck, use pliers or a screwdriver to gently pry it out. Be careful not to damage the surrounding spout.
  3. Clean the Spout: Clean the inside of the spout thoroughly to remove any debris or residue.

Installing the New Delta Tub Spout Plastic Insert

Installation is the reverse of removal.

  1. Lubricate (Optional): Apply a small amount of silicone grease to the outside of the new insert. This will make it easier to slide into the spout and help prevent future sticking.
  2. Insert the New Insert: Slide the new delta tub spout plastic insert into the spout, ensuring it’s properly seated.
  3. Verify Proper Fit: Ensure the insert is fully seated and flush with the spout’s interior.

Reinstalling the Tub Spout

Reinstall the spout according to its original type.

Reinstalling a Slip-Fit Spout (with Set Screw)

  1. Align the Spout: Align the spout with the pipe, matching any markings you made earlier.
  2. Slide the Spout On: Slide the spout onto the pipe until it’s fully seated against the wall.
  3. Tighten the Set Screw: Tighten the set screw securely, but avoid over-tightening, which can damage the pipe.

Reinstalling a Threaded Spout

  1. Apply Teflon Tape (Optional): Wrap Teflon tape around the threads of the pipe coming out of the wall. This will help prevent leaks.
  2. Screw on the Spout: Screw the spout onto the pipe clockwise, tightening it firmly by hand.
  3. Final Tightening: Use pliers or an adjustable wrench (with a cloth for protection) to give the spout a final tightening. Avoid over-tightening.

Testing for Leaks

After reinstalling the spout, test for leaks.

  1. Turn on the Water: Turn on the water to both the tub and shower settings.
  2. Inspect for Leaks: Carefully inspect around the spout, where it meets the wall, and where it connects to the pipe, for any signs of leaks.
  3. Address Leaks: If you find any leaks, tighten the connections further or reapply Teflon tape (for threaded spouts). For slip-fit spouts, ensure the set screw is properly tightened.

Delta Tub Spout Plastic Insert Replacement: FAQs

Here are some frequently asked questions about replacing the plastic insert in your Delta tub spout. Hopefully these can clarify things and help you with your repair!

Why did my Delta tub spout plastic insert break?

The plastic insert in a Delta tub spout often breaks down over time due to constant water exposure, mineral build-up, and wear and tear from the diverter mechanism. Cheap materials can also lead to premature failure of the delta tub spout plastic insert.

What are the signs I need to replace the plastic insert?

Common signs include a leaky tub spout, water coming out of both the spout and the showerhead simultaneously, or the diverter not staying engaged. A cracked or missing delta tub spout plastic insert is the root cause of these problems.

Can I buy just the plastic insert for my Delta tub spout?

Yes, you can often find replacement plastic inserts for Delta tub spouts online or at hardware stores. Make sure to get the correct size and type for your specific Delta model. Sometimes you might need to purchase the entire spout assembly if the insert is not sold separately.

What tools do I need to replace a Delta tub spout plastic insert?

Generally, you’ll need a flathead screwdriver, a Phillips head screwdriver (depending on the spout’s screw type), potentially pliers or a wrench to loosen the spout, and possibly a lubricant to help ease the new delta tub spout plastic insert into place.

So, you’ve tackled that delta tub spout plastic insert replacement like a pro! Pat yourself on the back, enjoy your drip-free bath, and remember this handy know-how for the future. Happy Plumbing!

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