Jason M Omaha , NE March 28, 2015 Just replacing a sink so ordered replacement parts for my disposal so that it would look new and work properly Unhooked waterlines from faucet. Unhooked drain and disposal from old sink. Removed old sink. Installed new top mount cast iron sink and new faucet. Re-installed disposal with new parts I ordered, connected drains and water lines. Wa-La! 2 People found this story helpful Do-It-Yourself Rating: Repair Time Estimate: 1-2 hours