Question about Delta Faucet 2578LHP/H277 Leland 4'' Centerset Bathroom Faucet - Polished C

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I have 5 of these faucets in my home that was built only 2 years ago. All of these faucets leak from the spout. I have replaced cartridges and they still leak.

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Did you replace the seats and springs under the cartridges, Delta part number RP4993. These are the more important parts to replace when your Delta faucet is dripping from the spout.

Posted on Sep 03, 2010

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    The valve cartridge needs replaced. Those can be purchased at most home improvement stores, such as Home Depot. Or, it may be under warranty.

    http://www.moen.com/replacement-parts/search

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    I changed out my Kohler shower diverter cartridge because it was leaking after doing so when you open any faucet in the house it will leak the more faucet you turn on the faster it leaks. The lady plumber...


    did your old diverter have a shut off knob on it? if so you may have not noticed it leaking, -what causes that is the existing shower faucet may have been mounted to high from the spout below -or the pipe going down from existing fixture to the tub faucet spout pipe may not be at least 3/4", -if its 1/2" it will always do that

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    How to fix a leaky Moen faucet that leaks at the spout ,which is separate from the handle?


    These faucets can leak in three different places:

    1. Internally at the valve seat
      You'll see water dripping from the spout. This means the rubber washer is worn or damaged. To replace the washer, remove the decorative cap from the handle. Remove the retaining screw and pull off the handle. Remove the decorative cover, called an escutcheon, if there is one. Unscrew the packing nut counterclockwise. Unscrew the valve stem and remove it. Remove the screw that holds the rubber washer in place. Because these washers come in many shapes and sizes, you'll want to take the old one to the hardware store and buy an exact replacement. Be sure to buy two washers so you'll have one for the other valve. Replace the washer and reassemble the faucet.
    2. Around the handle
      If you see water coming from below the handle, the packing nut is leaking. Older faucets have a string-like graphite packing material wrapped around the stem. Newer faucets use an O-ring. First try tightening the packing nut clockwise... about one-half turn. If this doesn't stop the leak, remove the packing nut and replace the packing or O-ring; then reassemble the faucet. If the valve is using the graphite packing material, it might be a clue that you should shop for a new faucet.

    3. Between a pivoting spout and the body
      The spout might be held in place with a packing nut, similar to the faucet stem, or it might have a nut at the top of the spout. In either case, remove the spout and replace the packing material or the O-ring seal. Then reassemble the faucet.
    Single lever faucets also are known as "washerless" faucets. They are easier to repair than compression faucets after you determine what type of faucet you have. There are three types of washerless faucets: ball, ceramic disk and cartridge.
    Leaks are evident in two places... dripping from the spout and seeping from around the spout where it joins the body of the faucet.
    Leaks from the spout indicate that the ball, disk or cartridge is leaking. To repair, turn off the water to the faucet, then remove the handle. The handles on ball-type faucets are held in place with a setscrew that requires an Allen wrench to loosen. Ceramic disk and cartridge-type handles usually are held in place by a screw hidden beneath a cap.
    On ball and ceramic disk-type faucets, remove the ball or disk and replace the seals. You can buy replacement kits for these faucets at the hardware store or home center.
    On cartridge-type faucets, remove the spout and pull out the retainer clip that holds the cartridge in place. To remove the cartridge, pull on the cartridge stem with a twisting motion. If it resists, install the handle so you can a better grip on the cartridge to pull it out. Take the cartridge to the hardware store or home center and purchase an exact replacement kit.
    Reassemble the faucet according to directions.
    Leaks at the spout-to-body joint indicate an O-ring failure. Disassemble the faucet as described above. Remove the spout sleeve and replace the O-rings. It's a good idea to replace these seals if you have the faucet disassembled for repair of the ball, disk or cartridge.

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    Trying to change cartridge on Moen single lever kitchen faucet with sprayer. Now that it's been reassembled, gets no water from spout when turned on. When lever is turned on, sprayer goes off and...


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    use the same steps as when you replaced the cartridge, but this time you will need to remove the spout, there is a small diverter, you will see it when spout is removed.

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