How To Open Old Cast Iron Drain

Cast iron drains are often found in older homes. They are prone to clogs, and over time can become difficult to open. There are a few methods you can use to open an old cast iron drain.

How To Open Old Cast Iron Drain

There are a few ways that you can open an old cast iron drain. One way is to use a plunger. Another way is to use a pipe wrench.

Cast iron drain opener, a screwdriver, and a wrench.

  • Remove any gunk or rust from around the drain with a wire brush
  • Unscrew the drain cover
  • Pour a pot of boiling water down the drain to loosen any builtup grime scrub the

1) Inspect the cast iron drain for any cracks or damage before attempting to open it. If there is any damage, it will need to be fixed before opening the drain. 2) Find the screws that hold the drain cover in place and remove them. 3) Gently pry the cover off of the drain. 4) Use a plunger to clear any clogs in the drain. 5) Once the clog is cleared, use a wire coat hanger

Frequently Asked Questions

How Do You Remove An Old Cast Iron Vent Pipe?

Removing an old cast iron vent pipe is a difficult task. The first step is to cut the pipe as close to the floor as possible. Next, use a hammer and chisel to break the pipe into smaller pieces. Finally, use a hacksaw to cut the remaining pieces of pipe.

How Do You Separate Cast Iron Pipe Joints?

Cast iron pipe joints can be separated by heating them until they are red hot and then using a hammer and chisel to break them apart.

How Do You Remove A Cast Iron Downpipe?

To remove a cast iron downpipe, one can cut the pipe into sections and use a wrench to unscrew it from the fittings.


Cast iron drains can be opened using a variety of methods. A drain opener can be used to soften the clog, allowing it to be removed with a plunger. If the clog is more stubborn, a plumber’s snake may be necessary to clear it.

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