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Shut Off Water and Disconnect Supply Line — Remove the Old Supply Line

Beginner

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How to Replace a Toilet Water Supply Line · Step 2 of 4

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Before proceeding, it's crucial to shut off the water supply to the toilet using the valve located on the wall behind it. Once the water is off, disconnect the water supply line from the bottom of the toilet tank. You may need pliers or a wrench to loosen the connection, but it can often be unscrewed by hand.

Goal: Toilet Removal

  • Always turn off the water supply before disconnecting any plumbing lines to prevent flooding.

Used in this video

  • Pliers (Pliers Type: Slip-joint pliers) · optionalLoosening the water supply line connection if it's too tight to undo by hand.
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FAQs

How difficult is it to replace a toilet supply line, and how long does it usually take for a beginner?

This is a beginner-level plumbing project, typically taking only 15-30 minutes to complete. The most time-consuming part is often ensuring all connections are leak-free. The cost is usually just for the new supply line, which is quite inexpensive.

Why is a braided stainless steel supply line recommended over other types, like plastic or standard polymer lines?

Braided stainless steel lines offer superior durability and burst resistance compared to older plastic or non-braided polymer lines. They are less prone to kinking and cracking over time, providing a more reliable and long-lasting connection to your toilet. This minimizes the risk of catastrophic water damage from a burst line.

What should I do if I find a leak after installing the new supply line and turning the water back on?

First, immediately turn off the water supply again at the shut-off valve. Gently tighten the connections a small amount (about a quarter turn) with your adjustable wrench. Ensure the rubber washers or cones are properly seated and not pinched. Avoid overtightening, as this can damage the fittings or line.

What if the water shut-off valve behind the toilet is old, stuck, or won't completely stop the water flow?

Do not force a stuck valve, as it could break and cause a larger leak. If the valve doesn't fully shut off the water, you'll need to turn off the main water supply to your house before proceeding. This might also be a good opportunity to replace the old shut-off valve itself, as a separate, slightly more involved project.

Transcript
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You can take your wrench or pliers and Undo the water supply Once you've got the water supply disconnected you want to use a sponge or some kind of a device to remove the

Auto-generated transcript. May contain errors.