How to fix a leaking delta two handle bathroom faucet

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2

Close one supply line to see if it’s a hot or cold water leak. For instance, close only the hot water supply by turning the shutoff valve in the sink cabinet clockwise. If the leak stops, you know the hot water is the culprit. If it’s still leaking, open the hot and close the cold to confirm that you don’t have both hot and cold water leaks.[3] X Expert Source

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3

Shut off both supply lines and open both taps to drain them. Close both the hot and cold supply lines under the sink cabinet, then open both the hot and cold taps until all the water in the lines has drained out. If the water doesn’t stop completely within a few seconds, you likely have a faulty shutoff valve that needs repaired—but you can continue with the faucet repair for the time being.[4] X Research source

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4

Lay a towel in the sink to cover the drain and protect the basin. This simple measure can save you from losing a set-screw or other small part down the drain, or from scratching up your sink basin with one of your tools. So don’t skip it![5] X Expert Source

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5

Remove the leaky tap’s handle via its cap or hex screw. If the handles have decorative caps (often labeled with "H" and "C") on top, pry off the relevant cap with the flat edge of a screwdriver. Unscrew the set-screw beneath the cap and lift off the handle.[6] X Expert Source

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6

Loosen the threaded collar with an adjustable wrench or pliers. Adjustable joint pliers (also known as slip-joint pliers or the brand name Channellocks) are ideal for this task. Grip the octagonal collar firmly and rotate it counterclockwise with a series of short turns until it comes loose and can be removed.[8] X Expert Source

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7

Grip the cartridge stem with pliers and pull straight up. The cylindrical white plastic cartridge will have a thinner metal or plastic stem at the top. Clench the stem firmly with needle-nose pliers, wiggle the cartridge back and forth a few times, then pull straight up to remove it.[10] X Expert Source

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8

Pick any debris out of the opening with your pliers. Once the cartridge is out, grab a flashlight and take a good look into the opening. Remove any bits of plastic, rubber, or other debris that might end up blocking the proper flow of water.[11] X Expert Source

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9

Decide if you’ll replace the O-rings or the whole cartridge. If the cartridge appears to be in good condition, you might consider replacing the cartridge’s black rubber O-rings—especially if your leak is a dripping spout. Cartridges often have two O-rings, one at the bottom and one closer to the top, and they can be removed with needle-nose pliers. Alternatively—and perhaps preferably—just replace the entire cartridge at this point since you’ve already removed it.[12] X Research source

• If an O-ring is brittle, frayed, torn, misshapen, or discolored, always replace it. Similarly, replace the cartridge if it shows any signs of excessive wear or damage, such as cracks or heavy discoloration.
• If the leak is coming from the base of the faucet handle, definitely replace the entire cartridge instead of just the O-rings.

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10

Take the old parts to a hardware store to get replacements. Faucet cartridges have subtle differences, even among Delta models, so use the old parts to get exact matches. Delta replacement parts are widely available at home improvement retailers, so you shouldn’t have trouble finding them at your local store.[13] X Research source

• If you have the model name and/or number for your Delta faucet, write it down and bring it along as well.
• If you’re just buying new O-rings instead of a complete cartridge, make sure the replacements are an exact size and shape match. Alternatively, buy an O-ring "variety pack" for around $10-$15 USD.
• Delta replacement cartridges typically cost around $15-$30 USD. You may be able to find cheaper non-Delta-approved cartridges for $10-$15, but these may void Delta’s warranty for your faucet.

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11

Press the new cartridge down into place by hand. If you’re replacing only the O-rings, stretch and slide these into place on the old cartridge. Then, line up the cartridge in the same orientation as before—if you took photos during the removal, use them as a guide. Press down firmly to seat the cartridge in the opening.[14] X Expert Source

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12

Tighten the threaded collar over the new cartridge. Slide the collar over the cartridge and onto the threads on the fixture. Turn it clockwise by hand until it’s snug, then use your adjustable pliers or wrench until you feel moderate resistance. Don’t over-tighten the collar—if you do, you may not be able to get it off next time you do repairs.[15] X Expert Source

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13

Reinstall the handle based on how you removed it. For a ball-shaped handle, set the handle on top of the cartridge, thread the set-screw into the opening and tighten it until you feel moderate resistance, then snap the top cap back into place. For a lever-like handle, set the handle in place and then tighten the small hex screw in the notch with your Allen wrench (hex wrench) until you feel moderate resistance.[16] X Expert Source

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14

Turn on the water and check for leaks. Open both water supply valves in the under-sink cabinet and watch for leaks at the faucet. If it passes this test, turn on both the hot and cold taps and watch for leaks at the base of the handle, then turn off both taps and look for dripping from the spout. If you have no leaks and no drips, your work here is done![17] X Expert Source

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1

Pinpoint the leak at either the spout or handle. Since you’re dealing with a one-handled faucet with an internal ball bearing, the ball bearing itself is the likely culprit if the leak is coming from under the handle. If, however, you’re dealing with a drip from the spout, the problem may be the round rubber gaskets inside the handle that are known as "seats."[18] X Research source

• Since you need to remove the ball bearing to fix either type of leak, consider replacing the entire ball bearing mechanism (including gaskets, washers, etc.) no matter which leak you’re dealing with.[19] X Research source

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2

Turn off the supply lines and drain the hot and cold taps. Reach into the under-sink cabinet and turn both the hot and cold supply line valves clockwise to close them. After that, turn on the faucet until water stops coming out of the spout. If you continue to have a slow drip, you can still do the faucet handle repair now—but be sure to get your shutoff valves fixed sooner rather than later![20] X Research source

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3

Cover the sink basin and drain with a work towel or rag. Sure, this little step doesn’t seem important—until, that is, you scratch up your sink by dropping your wrench or lose a set screw down the drain! So take the few extra seconds now to save yourself from the potential for lots of aggravation later.[21] X Expert Source

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4

Remove the handle via its decorative cap or hex screw. If you see a small notch with a hexagonal screw head in it, insert an Allen wrench (hex wrench)—likely 1⁄8in (3.2mm) in diameter for Delta faucets—into the notch and loosen the screw until the handle comes free.[22] X Research source Otherwise, look for a decorative cap (which might be labeled "Delta") on top of the handle and pop it off with the blade of a screwdriver. Loosen the set-screw underneath to free the handle.[23] X Expert Source

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5

Unscrew and remove the collar and the dome-shaped cap. Start by loosening and removing the hexagonal holding collar with an adjustable wrench or adjustable pliers (e.g., Channellocks). Then do the same to remove the dome-shaped cap. Turn counterclockwise in short bursts to loosen the components, especially if they don’t want to budge at first.[24] X Research source

• If you’re lucky, there’s a small chance your repair can end right here! If the collar or cap is already loose, try tightening both with your wrench or pliers until you feel moderate resistance. Then put the handle back on and turn on the water. If you still have a leak, undo everything again and resume the more complete repair.

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6

Lift out the cam, washer, ball, seats, and springs as they appear. The stem of the ball bearing comes up through the openings in the disc-shaped cam and the flexible washer (packing washer) beneath the cam, so use the stem to pull out all these parts at once. Look in the opening, locate two small rubber seats (round gaskets), and pull these out with needle-nose pliers. Do the same with the pair of springs underneath the seats.[25] X Research source

• As an insurance policy when it comes time to put everything back, take some photos (or a video) showing how the parts fit together.

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7

Get matching replacement parts. Ordering replacement parts from Delta is a great option, but it’s also easy to take everything you removed with you to the hardware store. Consider getting only new seats and springs, or play it safe and buy a matching kit with the entire ball bearing setup.[26] X Research source

• Delta-branded ball bearing replacement kits cost around $25-$35 USD, while Delta-compatible (but possibly not warranty-approved) kits typically cost around $15-$25 USD. A set of replacement seats and springs costs around $5-$10 USD.

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8

Install the new parts in reverse order of removal. Start by sliding one of the seats, flat side first, onto the long end of your Allen wrench (hex wrench), then slide on one of the springs, narrow side first. Dip the wrench tip down to one of the notches at the base of the opening and slide the parts into place, then repeat with the other seat and spring. Continue as follows:[27] X Research source

• Slip the packing washer and then the cam onto the stem of the ball bearing.
• Grasp the stem with your fingers and set the ball bearing down into the opening.

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9

Screw on the cap, tighten the collar, and install the handle. Slip the dome-shaped cap over the stem and tighten it by hand and then with your wrench or pliers until you feel moderate resistance. Slide the collar over the cap and tighten it up the same way.[28] X Research source

• Don’t over-tighten these parts or you may damage the ball bearing or make future removal extremely difficult.[29] X Expert Source

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  10

  Put the water back on and test your repair job. Reach into the sink cabinet and open the hot and cold shutoff valves, then watch for leaks at the faucet. Turn on the faucet, check for leaks again, then close the tap and check one last time for leaks.[30] X Expert Source

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  Things You’ll Need

  • Work towel or rag

  • Slip-joint pliers or adjustable wrench

  • Delta-approved replacement parts

  • Screwdriver

  • Allen (hex) wrench

  • Needle-nose pliers

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  References

  1. ↑ //www.deltafaucet.com/design-innovation/inspiredliving/how-to-fix-a-leaky-faucet
  2. ↑ //www.thisoldhouse.com/kitchens/21097141/how-to-stop-kitchen-faucet-leaks
  3. ↑ Dave Jones. Master Plumber, Roto-Rooter Plumbing & Water Cleanup. Expert Interview. 29 March 2021.
  4. ↑ //youtu.be/T5DImWddq5w?t=2
  5. ↑ Dave Jones. Master Plumber, Roto-Rooter Plumbing & Water Cleanup. Expert Interview. 29 March 2021.
  6. ↑ Dave Jones. Master Plumber, Roto-Rooter Plumbing & Water Cleanup. Expert Interview. 29 March 2021.
  7. ↑ //www.deltafaucet.com/design-innovation/inspiredliving/how-to-fix-a-leaky-faucet
  8. ↑ Dave Jones. Master Plumber, Roto-Rooter Plumbing & Water Cleanup. Expert Interview. 29 March 2021.
  9. ↑ //www.deltafaucet.com/design-innovation/inspiredliving/how-to-fix-a-leaky-faucet

  More References (22)

  1. ↑ Dave Jones. Master Plumber, Roto-Rooter Plumbing & Water Cleanup. Expert Interview. 29 March 2021.
  2. ↑ Dave Jones. Master Plumber, Roto-Rooter Plumbing & Water Cleanup. Expert Interview. 29 March 2021.
  3. ↑ //youtu.be/T5DImWddq5w?t=48
  4. ↑ //youtu.be/T5DImWddq5w?t=48
  5. ↑ Dave Jones. Master Plumber, Roto-Rooter Plumbing & Water Cleanup. Expert Interview. 29 March 2021.
  6. ↑ Dave Jones. Master Plumber, Roto-Rooter Plumbing & Water Cleanup. Expert Interview. 29 March 2021.
  7. ↑ Dave Jones. Master Plumber, Roto-Rooter Plumbing & Water Cleanup. Expert Interview. 29 March 2021.
  8. ↑ Dave Jones. Master Plumber, Roto-Rooter Plumbing & Water Cleanup. Expert Interview. 29 March 2021.
  9. ↑ //www.deltafaucet.com/design-innovation/inspiredliving/how-to-fix-a-leaky-faucet
  10. ↑ //www.thisoldhouse.com/kitchens/21097141/how-to-stop-kitchen-faucet-leaks
  11. ↑ //youtu.be/T5DImWddq5w?t=2
  12. ↑ Dave Jones. Master Plumber, Roto-Rooter Plumbing & Water Cleanup. Expert Interview. 29 March 2021.
  13. ↑ //www.deltafaucet.com/design-innovation/inspiredliving/how-to-fix-a-leaky-faucet
  14. ↑ Dave Jones. Master Plumber, Roto-Rooter Plumbing & Water Cleanup. Expert Interview. 29 March 2021.
  15. ↑ //www.deltafaucet.com/design-innovation/inspiredliving/how-to-fix-a-leaky-faucet
  16. ↑ //www.deltafaucet.com/design-innovation/inspiredliving/how-to-fix-a-leaky-faucet
  17. ↑ //www.deltafaucet.com/design-innovation/inspiredliving/how-to-fix-a-leaky-faucet
  18. ↑ //www.deltafaucet.com/design-innovation/inspiredliving/how-to-fix-a-leaky-faucet
  19. ↑ //www.deltafaucet.com/design-innovation/inspiredliving/how-to-fix-a-leaky-faucet
  20. ↑ Dave Jones. Master Plumber, Roto-Rooter Plumbing & Water Cleanup. Expert Interview. 29 March 2021.
  21. ↑ Dave Jones. Master Plumber, Roto-Rooter Plumbing & Water Cleanup. Expert Interview. 29 March 2021.
  22. ↑ //youtu.be/T5DImWddq5w?t=79

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