When you wash your hands, If at some point the sink doesn't drain properly, Try this. Spray sodium percarbonate two or three times and boil hot water and spray it!! It will bubble and become clean in real time. A plunger is the best, but the all-purpose detergent sodium percarbonate is also worth trying in a hurry!! #Housekeeping Tips #살림꿀팁 #배수구관리