Disconnect Supply Lines from Faucet — Disconnect the Old Faucet
Part of project
Faucet Replacement: A Step-by-Step DIY Guide · Step 2 of 3
In this video
Disconnect the supply lines from the faucet. For the supply lines with metal nuts, use a basin wrench to loosen them from the faucet. If there are plastic nuts on the faucet connections, you may need to use a special tool or, with a small cut, a piece of PVC pipe will often work. Turn the nuts counter-clockwise to loosen and remove them.
Goal: Detach Existing Supply Lines
Used in this video
- Basin Wrench (Basin Wrench Type: Standard) · optional — Loosening the supply line nuts from the faucet.
- PVC pipe piece (Size/Capacity: Small) · optional — To assist with loosening plastic nuts.
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FAQs
Do I really need a basin wrench for this project, or can I use a standard adjustable wrench?
While an adjustable wrench can handle some tasks, a basin wrench (like the TEKTON WRN92004) is highly recommended. Its specialized design allows you to easily reach and tighten nuts in the tight, awkward space under the sink, making the process much smoother and preventing frustration, especially for beginners.
What should I do if the water supply valves under my sink are stuck, corroded, or leaking when I try to turn them off?
If your shut-off valves are stuck or leaking, do not force them, as this could cause a more significant leak. You might need to turn off the main water supply to your house to prevent flooding. This usually indicates that your shut-off valves need replacement, which is a separate project best addressed before installing a new faucet.
I've installed my new faucet, but it's dripping or leaking from the connections under the sink. What should I check first?
Leaks commonly occur if the supply line connections or mounting nuts aren't sufficiently tight. First, gently but firmly tighten all supply line nuts and mounting nuts under the sink with your wrenches, being careful not to overtighten and strip threads. If the leak persists, turn off the water, disassemble the connections, ensure all washers and O-rings are correctly seated, and reapply plumber's putty if applicable before re-tightening.
Is plumber's putty absolutely necessary, or can I use silicone caulk for sealing the new faucet to the sink?
Plumber's putty (like Oatey 311662) is the traditional choice for sealing the faucet base against the sink, creating a watertight seal that allows for easier removal in the future. Silicone caulk can also be used but creates a more permanent bond, making future faucet removal more challenging. Always check your new faucet's manufacturer instructions, as they may specify a preferred sealant or prohibit putty for certain sink materials.
TranscriptHide
Auto-generated transcript. May contain errors.
Disconnect Supply Lines from Faucet — Disconnect the Old Faucet
Part of project
Faucet Replacement: A Step-by-Step DIY Guide · Step 2 of 3
In this video
Disconnect the supply lines from the faucet. For the supply lines with metal nuts, use a basin wrench to loosen them from the faucet. If there are plastic nuts on the faucet connections, you may need to use a special tool or, with a small cut, a piece of PVC pipe will often work. Turn the nuts counter-clockwise to loosen and remove them.
Goal: Detach Existing Supply Lines
Used in this video
- Basin Wrench (Basin Wrench Type: Standard) · optional — Loosening the supply line nuts from the faucet.
- PVC pipe piece (Size/Capacity: Small) · optional — To assist with loosening plastic nuts.
Frequently Asked Questions
Do I really need a basin wrench for this project, or can I use a standard adjustable wrench?
While an adjustable wrench can handle some tasks, a basin wrench (like the TEKTON WRN92004) is highly recommended. Its specialized design allows you to easily reach and tighten nuts in the tight, awkward space under the sink, making the process much smoother and preventing frustration, especially for beginners.
What should I do if the water supply valves under my sink are stuck, corroded, or leaking when I try to turn them off?
If your shut-off valves are stuck or leaking, do not force them, as this could cause a more significant leak. You might need to turn off the main water supply to your house to prevent flooding. This usually indicates that your shut-off valves need replacement, which is a separate project best addressed before installing a new faucet.
I've installed my new faucet, but it's dripping or leaking from the connections under the sink. What should I check first?
Leaks commonly occur if the supply line connections or mounting nuts aren't sufficiently tight. First, gently but firmly tighten all supply line nuts and mounting nuts under the sink with your wrenches, being careful not to overtighten and strip threads. If the leak persists, turn off the water, disassemble the connections, ensure all washers and O-rings are correctly seated, and reapply plumber's putty if applicable before re-tightening.
Is plumber's putty absolutely necessary, or can I use silicone caulk for sealing the new faucet to the sink?
Plumber's putty (like Oatey 311662) is the traditional choice for sealing the faucet base against the sink, creating a watertight seal that allows for easier removal in the future. Silicone caulk can also be used but creates a more permanent bond, making future faucet removal more challenging. Always check your new faucet's manufacturer instructions, as they may specify a preferred sealant or prohibit putty for certain sink materials.
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