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  • 5 Steps to Repair a Leak in the Sink Water Supply Line

    Leaks under the sink can do a lot of damage to your cabinet or floor. However, most of the under-sink leaks are easy to locate and repair. The water may come from the supply hoses, the drainpipes or the faucet itself. Do the repair yourself and save a lot of money in calling a plumber. Here, we will be offering a step by step guide that will help you in repairing a leaky water supply line to your sink.

    Tools and Materials Required:

    • adjustable crescent wrench
    • a water supply line hose
    • plumber’s Teflon tape
    • an empty bucket

    Step 1 – Determine the source of the leak

    Turn on one faucet at a time to determine which water supply line is leaking since most sinks have hot and cold water supply line. You can use an empty bucket to catch any water that may spill out during the assessment.

    Step 2 – Remove the leaky water supply line

    The faulty water supply line hose can be discarded by turning the compression nuts on the line counterclockwise using a crescent wrench. The compression nuts on the base of the water faucet and water supply valve must also be removed. Shut off the water supply before removing the faulty water supply line.

    Step 3 – Replace the plumber’s Teflon tape on the stem connection fittings.

    Make three or four turns of the Teflon tape around the ends of the connection fittings on the water supply valve and underneath the faucet. Ensure that the threads on the connection fittings must be covered with the tape.

    Step 4 – Install the new line hose

    Install the new water supply line hose after the Teflon tape has been wrapped around the threaded ends of the connection fittings. Make sure not to use too much force when tightening the compression nuts on the water supply valve and the base of the faucet to avoid damaging the connection fittings.

    Step 5 – Test the new installation

    Once the installation has been completed, turn the water back on at the water supply valve to test the new water supply line and check for leaks. Dry up any water on the lines or other fixtures using a towel or rag if you are satisfied with the repair.

    According to nonprofit environmental conservation organization Clean Up Australia Ltd., a leaking tap can waste as much as 2,000 litres of water per month. For this reason, you should stop leaks as soon as they appear.