Unclog bathroom sink without chemicals

Step 10 Reconnect things

Natural handyman recommends to slather some plumbers grease on the ball. I don't.

Screw on the pivot nut locking the horizontal pivot arm in place. Not too tightly, and not too loosely. If the lift rod doesn't stay up, you might need to tighten the pivot nut a bit. 

Slide the tailpipe back onto the drain pipe (mine fits without tightening).

Reconnect the u-pipe by tightening each end a little in turn.