How to Repair a Moen Single Handle Faucet Leak Under the Faucet

Leaking under the sink signals it's time for repairs.

Moen is a company that has made a name for itself in terms of producing quality, average-priced plumbing fixtures and accessories. If you are noticing water leaking from beneath your Moen faucet where the supply lines connect to the inlets on the faucet, the odds are the washers within the supply lines have worn away, and the entire line needs replacing. You can purchase faucet supply lines at any local hardware store.

Difficulty:

Easy

Instructions

Things You'll Need

• Wrench or pliers
• 2 supply lines
• Plumber's tape

1. Close both the hot and cold shutoff valves beneath your sink.

2. Turn on the faucet, emptying the lines of any water.

3. Unscrew the nut on the supply line connecting it to the shutoff valve. Pliers or a small plumber's wrench will help loosen the nut.

4. Unscrew the nut on the supply line connecting it to your Moen faucet.

5. Wrap a piece of plumber's tape around both threads of the shutoff valve and the faucet that the supply line threads onto.

6. Thread the indicated end of the supply line onto the shutoff valve where you applied plumber's tape. Pliers or a small plumber's wrench will help tighten the nut.

7. Attach the indicated end of the supply line onto the inlet of your Moen faucet where you applied plumber's tape. Use pliers or a small plumber's wrench to help tighten the nut.

8. Repeat steps 3 to 7 for the remaining supply line.

Tips & Warnings

• The inlets on all faucets are a universal size, 1/2 OD. You will want to know the size of the threads on your shutoff valve to purchase the correct replacment hose; it should either be 3/8 FIP or 1/2 FIP.

References

• Improvement Direct