How to unclog a bathroom sink or bathtub drain Remove the hair: Most bathroom clogs are caused by a buildup of hair and personal cleaning products. The best way to remedy that is to remove the clog manually (see above). Flush with hot water: If removing hair doesn’t seem to work, ...
or vents that are close to the drain line you are plunging. This step might not be needed to clear a toilet, but it certainly is if clearing a blocked sink or tub. Persist: don't give up too soon. We have successfully un-blocked recalcitrant clogged toilets that did not respond at ...