The best way to unclog a bathroom sink is to plunge it or use a zip tie, as outlined above. If this doesn’t work, you can try secondary methods such as boiling water and—if you’re really brave—P-trap ...

While many might grab a plunger, expert advice suggests using boiling water or white vinegar. Lee Waring, a plumbing specialist at HomeHow.co.uk, recommends: "When you're trying to unblock a sink ...