For sweet smelling drains, and to prevent grease and unpleasant odours in sink or bathroom drains, pour a handful of salt or a 1/4 cup of baking soda down the kitchen or bathroom plughole, and wait 5 minutes before flushing with warm water.
This will ensure your drains remain residue-free and smelling fresh. Do this weekly to keep drains clear and deodorised. To instantly freshen up smelly drains you could also pour 2 cups of white vinegar down the drain and leave for 30 to 45 minutes before flushing with a bucket of hot water.
Bathroom sinks, showers and bathtub drains have to cope with the daily bombardment of hair, skin, soap, shampoo and body wash residues so it’s not surprising they often become blocked and clogged up. To clear and dissolve the problem, mix 1 cup of salt, 1 cup of baking soda and ½ a cup of white vinegar together in a bowl. Pour the mixture down the drain and leave to work for 30 minutes before flushing thoroughly with hot water.