The hot water will loosen soap scum and any other foul smelling debris in the drain.
How to fix a smelly sink drain.
One of them is to prepare a mixture of half a liter of warm water 200 ml white vinegar and 100g of sodium bicarbonate or baking soda and then pour it down the drain.
Turn on the water plug the drain and allow the sink to fill with water.
If using the tap isn t an option heat a pot of water on the stove.
Vinegar cleans stinky drains.
Add a small amount of bleach.
Smells emanating from the bathroom sink could be the result of bacteria growth on hair soap and other bathroom waste and if so cleaning the p trap and pouring baking soda in the drain are.
While wearing rubber gloves mix the water and bleach together.
Avoid expensive and chemically based drain cleaners sold at supermarkets and home improvement stores.
They are often ineffective and use chemicals that you do not want around your home or family.
Heat four cups of white vinegar until it simmers not boils.
Since white vinegar contains acetic acid it neutralizes alkaline sources of odor.
If the u bend isn t the problem you can try out some popular home remedies to fix a bad smelling drain.
Get rid of a smelly sink drain with baking soda.
Vinegar is a fantastic deodorizer.
It also cuts through grease and has disinfecting properties so it can help clean smelly drains by dissolving biofilm or other material.
Luckily keeping the drain clean and odor free is a fairly easy task and requires only a couple of inexpensive household ingredients.