Step 3: Disconnect the feed lines Open the faucet to drain any remaining water and release pressure from the line. Using an adjustable wrench, disconnect the hot and cold feed lines from underneath. Also disconnect the third line and coupling if you have a dish sprayer.
Disconnect the feed lines to the hot and cold water and the sprayer.
Step 6: Center the Faucet and Check Fasteners Center the faucet and loosely tighten the retainer nuts from underneath. Check the position of the faucet, reposition if necessary, and tighten the nuts completely.
Tighten the retainer nuts before you check the faucet position.
Step 7: Attach the hot and cold lines Attach the cold water supply line to the right side of the faucet and the hot water supply to the left. Then attach each supply line to the proper water pipe. Hand tighten the fittings and then snug them tight with a wrench. Do not overtighten the fittings.
Step 8: Remove the aerator and check for leaks Remove the aerator so that any collected sediment will flow out of the faucet. Using the water shut-off valves, check the lines separately by turning on first the cold water and then the hot.
Remove the aerator to flush any sediment when the shut off valves are opened.
Step 9: Check for leaks and replace aerator Check for leaks at all of the fittings and connections. Flush sediment by running the hot and cold water. Replace the aerator and get ready to use your new faucet.