An older home usually contains copper water lines, which will eventually corrode. The lines run from the water shutoff valve to a faucet or toilet tank and the corrosion usually occurs at the fittings. Installing more modern flexible water lines prevents mold and damage that could result. In addition, these lines can be repositioned once installed to allow more under-sink storage space.
You will need:
Step 1: Shut off the water supply to the faucets by turning off the valves. Some water leakage may result because these lines are typically not turned off, so place the drip pan under each valve.
Step 2: Find a correctly sized open-end wrench and use it to remove each water supply line from its shutoff valve. Use a basin wrench to loosen the faucet nuts and remove each water line from the faucet. This wrench features spring-loaded jaws with a 90-degree swivel, making it easier to reach and loosen or tighten the nuts. If the faucet is newer, it may have plastic nuts that can be hand-turned.
Step 3: Attach the flexible water lines to the faucet and then to the water supply valves.
Step 4: Turn on the valves, turn on the faucet, and check the area for leaks.
Step 5: To install a new supply line for a toilet, select a stainless steel line of the proper length and size.
Step 6: Turn the valve to turn off the water supply. Drain and flush the toilet tank.
Step 7: Place a drip pan under the water supply valve. Remove the existing supply line from the valve with the adjustable wrench.
Step 8: Use the basin wrench to remove the water supply line from the toilet tank.
Step 9: Attach one end of the stainless steel line to your water shutoff valve. Attach the other end to the toilet tank.
Step 10: Turn the shutoff valve to supply water to the toilet tank. Check for any leaking.