Do u need a cleanout for sink to drain right

A clean out is frequently installed on the drain right before it enters the wall, good if you have one but cleaning a drain can be done without one. Is this a single or double sink and what is the issue?

A clean out is frequently installed on the drain right before it enters the wall, good if you have one but cleaning a drain c
Ian be done without one. Is this a single or double sink and what is the issue?
It broke at the old one so I just put in a staight pipe now it's not draining cloged maybe

Is this a single or double sink

do u need a cleanout for sink to drain right A cleanout won't help the drainage but it sure helps if you have to snake a blockage. Good luck, Tom