How To Cut Bathroom Sink Drain Pipe?


Use your coarse-toothed hacksaw or fine-toothed carpenter’s saw to cut through these pipes. To make sure you get a square and clean cut, attach a piece of wood to your workbench with a few screws and wedge the pipe firmly against this.


Go into the crawlspace, if the sink is at ground level, and find the point at which the pipe passes through the bottom plate of the wall. Follow the pipe to the point at which it connects to the cellar drain. Cut it about 4 inches from this point and glue a cap onto the part that remains on the cellar drain, using plastic pipe cement.

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Frequently Asked Questions

How do you cut a bathroom sink pipe?

0:275:47How to Cut Plumbing Pipes and Tubing | This Old House - YouTubeYouTubeStart of suggested clipEnd of suggested clipSo you tighten it down and the most important thing is this first revolution. Because as you goMoreSo you tighten it down and the most important thing is this first revolution. Because as you go around you're going to score the pipe you see that. Now when I bring it all the way around.

Can you cut a sink drain?

Be sure that the pipe is held securely before cutting it with a fine-tooth hacksaw. Carefully cut the pipe making sure that the cut is square or it will not be able to fit inside the trap. Remove the burrs using a sharp knife and sand the rough edges afterwards.

How do you cut a lead drain pipe?

Remove the lead pipe from the main drain connection. Although it may be attached with an iron screw-in connector piece, it is most likely formed around a protruding cast iron pipe. Cut the lead pipe at the connection. Use a wood chisel and hammer to cut the remaining lead pipe off of the iron pipe.

How do you cut galvanized drain pipe?

A Step-by-Step Guide on How to Cut Galvanized Pipe

  1. 1. Have Your Supplies Ready.
  2. Secure Your Pipe in Place.
  3. Take Safety Seriously.
  4. Pick a Tool for Cutting. Using a Reciprocating Saw. Using an Angle Grinder. Using a Jigsaw Using a Pipe Cutter. Using a Hacksaw.
  5. Make Steady Cuts.
  6. Fill the Pipe Edges.
  7. Thread the Pipe if Necessary.

How big of a drain pipe do you need for a bathroom sink?

It is actually an appropriate size for bathroom sink considering that the duty is smaller as well. Your bathroom sink drain will throw away water mostly, or toothpaste and tiny stuffs sometimes. Therefore, bigger diameter of the pipe is actually unnecessary.

What's the best way to cut copper tubing?

1. Use a standard tubing cutter to cut copper pipe. 2. Tighten the cutter so that its blade just scores the pipe. Rotate the cutter around the pipe. 3. Slightly tighten the cutter and rotate it around the pipe several times. Repeat until the blade severs the pipe. 4. Cut steel pipe with hacksaw, reciprocating saw or use a steel-pipe tubing cutter.

Where to put drain and vent lines in a bathroom?

Drain and vent lines must be positioned precisely, so you should install them before the supply pipes. It may be possible to simplify supply runs by moving a vent pipe over a few inches.

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