Step 3 · Break and Remove Old Cast Iron Flange

This step requires force and caution. Put on your safety glasses and heavy-duty gloves. Place the tip of the cold chisel on the top ring of the cast iron flange, angled away from the center drain pipe. Strike the end of the chisel firmly with a hammer or small sledgehammer. Reposition the chisel and repeat, working your way around the flange to create score lines. The brittle cast iron will eventually crack and break apart. Use a pry bar to lift and remove the broken pieces. Be extremely careful not to hit or damage the main cast iron drain pipe.

Tools and Materials

Dasco Pro 3/4 in. x 12 in. Cold Chisel G410Husky 6 lbs. FiberGlass hdl, Sledge Hammer MD-6F-HDMilwaukee 12 in. Pry Bar 48-22-9034HDX Over the Glass Indoor Safety Glasses VS-265Husky Large Heavy Duty Glove 67812-063M 6311 P95 Reusable Large Paint Project Respirator 6311PA1-A