Quote Originally Posted by travajante View Post
Always install vents to provide atmospheric pressure into the waste system. This is often overlooked by self-taught plumbers.
One hack on clogged sinks, use your palm to rapid pump onto the strainer. Make sure the sink has water about half or an inch high when your hand pumping.

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This is what I do. Learned it from my wife when I saw her doing a CPR like chest compression sa drain. Now I always do it basta mabagal ang baba ng tubig.

I heard a plunger will also do the trick. But my hand is enough.