Leaking kitchen sink

[ajspdv]

Hello, I have a small leak (worse when filling the sink and then draining suddenly) from the spot in the photo. Do I need to replace the entire sink strainer basket or could I just repair the leak with a product like repair putty or flex seal? I'm going to rip out the sink in the next year or two so I'm mostly looking for a solid temporary fix. If I do need to repair the sink strainer basket, do I need to remove *all* the piping below it or just up to the first nut? Thank you!
AJ

 

[Twowaxhack]

I’d would replace it. IMO it would be easier.

You could try to tighten that nut. Be prepared to replace it you do.

 

[CT18]

Why does that copper go so far down. Can you get a picture of the drain piping

 

[Twowaxhack]

I’m guessing a trap under the floor.

 

[michaeljh1965]

I would replace it, too. Why wait a year or two when you can do it today?

 

[ajspdv]

Thank you! The pipes go down into the basement and feed directly into the waste pipe. To replace the sink strainer can I just replace up where the leak is or will I need to disassemble all/most joints below? It’s a 1950s house with original piping that wouldn’t be the easiest to dismantle. Also, if I were to just try to plug the leak, any recommendations for products that might hold up for a year or two? Thank you so much again! Very grateful for the expertise here!