What is the next step for replacing broken pipe under kitchen sink?

Submitted by protolalia t3_10nqrwh in DIY

I'm trying to replace the broken drain pipe that connects to the wall pipe underneath my kitchen sink. I was able to remove one bolt that covered the threads between 1 & 2 (see image) What is my next step?

I've been trying to loosen the bolt (#1) that is connected to the wall pipe. It won't budge, and I'm not sure if that's because it's not actually a bolt, or if it's just heavily corroded.

Should I be trying to twist the drain pipe instead? It also feels very stuck.

Any help is appreciated. I can't find an example on YouTube with a wall drain that looks like mine.

Close up of pipe connection: https://imgur.com/51fBd84

Full pic of broken pipe https://imgur.com/PeHRuoC

Edit: Thanks everyone for the help! The pipe finally came loose!

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Comments

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brock_lee t1_j6ac345 wrote

It looks like the nut you removed between 1 and 2 was a compression fitting, so the broken "chrome" piece should just slide easily out toward you. And when I say easily out, I mean you should be able to grab it with a pipe wrench or strap wrench and twist it to free it up, and then twist while pulling out with great difficulty. If it's a standard size, a new pipe with compression fitting should slide it once you clean up the opening a little.

https://i.imgur.com/LlaabfK.jpg

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Tolenkanor t1_j6am9e3 wrote

If a drain pipe won't loosen, and is still solid (not falling apart from rust), one fix is to cut the end off, removing any stuck nut or fitting. Then use a rubber coupling, or "fernco" to join the sink drain to the wall pipe. A hacksaw would be sufficient cut the pipe, but I'd use a sawzall cause I have one and they make quick work of it.

Rusted steel drains really don't want to come apart, even when standing and jumping on the pipe wrench. So my usual approach is to cut the pipe, and attach PVC with a fernco.

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protolalia OP t1_j6ap0pn wrote

Thanks for helping. I finally got it loose after an hour + of tugging.

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D-Honey t1_j6acjo5 wrote

Why not just pull the pipe apart at 2 Now that you've removed the nut, it should come off.

Take that pipe that's broken and the nut to the hardware store

It could be tough to find that size pipe since it's so outdated

The nut at 1 is a size reducer You can leave it

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protolalia OP t1_j6ajlxb wrote

Do you have any advice about how to dislodge the pipe? I sprayed the connection with WD40, and I'm grabbing the pipe with a plumbers wrench near the connection. I can't get it to budge or twist even a little.

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D-Honey t1_j6ajyy5 wrote

You could try a propane torch Heat the pipe to expand it

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j-random t1_j6av7j8 wrote

You should get some penetrating oil. PB B'laster is one, Kroil is another brand. Spray that on the threads and leave it for an hour or so. They will work their way into the threads by capillary attraction and lubricate the stuck parts.

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