Replacing a Galvanized Nipple That Is Stuck in the Plumbing

Galvanized nipples are rigid plumbing connectors that consist of short 1- to 2-inch-long pipes of corrosion-resistant steel. The exterior of each end of the nipple contains threads much like a screw. The nipples connect multiple sections of pipes to each other by simply screwing into them. Although the nipples do not typically corrode, they do collect mineral deposits that make them a challenge to remove. Using lubricating products before attempting removal greatly speeds the process.

Lubricating spray
Cloth
Two open-ended wrenches
Hacksaw blade (optional)

Instructions

- 1
  Turn off the water supply to the pipe that contains the galvanized nipple. If the pipe runs to an appliance, such as a water heater, look for a shut-off knob or valve above the appliance. Otherwise, shut off all water to the home at the main supply. The main supply shut-off is in a covered hole near the road or sidewalk.
- 2
  Open a spray can of lubricating spray and spray all areas of the galvanized nipple until it is saturated. Wipe up any drips with a cloth. Then wait one to two minutes to allow the spray to begin working.
- 3
  Place an open-ended wrench on top of the galvanized nipple and place another open-ended wrench on the pipe or the nut that attaches to the top of the nipple.
- 4
  Hold one wrench still while you twist the other to break the mineral deposits and free the nipple. Set the wrenches aside and manually unscrew it the remainder of the way.

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