Kitchen drain pipe connection

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Still Learning

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Can you tell me if this setup right below the right side of the kitchen sink is a normal setup? I’m thinking it should have a straight piece coming down first. Also, would it require a slip joint washer?
C3305CE1-4911-479E-85B8-82167E70A748.jpeg
 
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Twowaxhack

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Those can be direct connect. It’s called a flanged tailpiece washer. I’m sure there are other names for it.
 

Still Learning

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So it’s optional to use the flanged tailpiece washer? When would I need to use the washer as opposed to not using the washer and doing a direct connect?

Thanks for your help thus far. I do appreciate it
 

Twowaxhack

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The washer is not optional. It’s inserted between the pipe and the sink basket drain.

All tailpieces and direct connect sink drains use a flanged washer or a washer of some type, it’s typically flanged.
 
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