Removing a Cast Iron Drain and Cleaning Out the Plug

Homes built before the 1970s and 1980s usually have old, cast iron sewer pipes -- unless the home has been renovated. If the pipes are cast iron then the drain plug at the end of the pipes is also cast iron. The plug is a cap that fits over the end of the pipe to allow access to the sewer line. You can remove the cast iron drain plug and clean it if needed.

Things You'll Need

• Spray lubricant
• Hammer
• Wrench
• Steel wool

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Instructions

1. • 1

     Apply spray lubricant to the drain plug and allow it to sit for three to five minutes.

   • 2

     Twist the drain plug cap off. If the cap is stuck, hit it with a hammer and use a wrench to loosen it.

   • 3

     Run water over the drain plug to rinse it off. Use the steel wool to scrub the plug and remove any rust or built up dirt.

   • 4

     Place the drain plug back on the end of the cast iron pipe and twist it in place with the wrench.