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How Do I Stop My Water Fittings From Leaking?

Published in Plumbing Repair 3 mins read

To stop your water fittings from leaking, firmly tighten compression fittings using two wrenches, ensuring proper alignment of the pipe within the fitting.

Here's a more detailed breakdown:

  • Tighten Compression Fittings Properly:

    • Use two wrenches. One wrench should hold the fitting steady, while the other tightens the nut. This prevents twisting and damage to the pipe.
    • The goal is to crimp the ferrule (the small ring inside the fitting) onto the pipe.
    • If leaking persists after turning on the water, try tightening the nut an additional quarter turn. Avoid overtightening, as this can damage the fitting or the pipe.
  • Ensure Proper Alignment:

    • Make sure the pipe or tubing goes straight into the fitting. Misalignment is a common cause of leaks. If the pipe is bent or not properly aligned, the fitting won't seal correctly.
    • Before tightening, check that the pipe is fully inserted into the fitting, up to the stop point, if applicable.
  • Check for Damage and Corrosion:

    • Inspect the fitting and pipe for any signs of damage, such as cracks, dents, or corrosion. Damaged components should be replaced.
    • Corrosion can prevent a good seal. Clean corroded areas with a wire brush or emery cloth before reassembling. If the corrosion is severe, replace the fitting and/or pipe.
  • Consider Using Pipe Dope or Teflon Tape:

    • For threaded fittings (not compression fittings), apply pipe dope (pipe joint compound) or Teflon tape to the threads before assembly. This helps create a watertight seal. Wrap Teflon tape in the direction of the threads.
    • Note: Teflon tape or pipe dope is not used on compression fittings.
  • Inspect and Replace Washers/O-rings (if applicable):

    • Some fittings use washers or O-rings to create a seal. Inspect these components for wear and tear, and replace them if necessary. Make sure the washer or O-ring is properly seated before tightening the fitting.
  • Call a Professional:

    • If you're uncomfortable working with plumbing or if you've tried the above steps and the fitting is still leaking, it's best to call a qualified plumber.

By following these steps, you can effectively address leaking water fittings and prevent further water damage.

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