Why does sink drain smell

Pour the boiling water down your drain. Follow it with the baking soda and vinegar solution. Plug the drain to allow this home remedy to work. Once the bubbling has subsided, flush with hot water. When regular maintenance fails or you've failed to keep up with your deodorizing routine there are some deep cleaning hacks to make your sink smell better. So, if your sink is emitting unpleasant odors, try one of these popular sink de-funking tricks:.

So, you've followed all the tips and hacks. But after trying a range of natural remedies to make your kitchen smell better, the stink lingers.

The following issues may mean it's time to call in a plumbing professional. If the sewer smell in your sink is caused by a blocked air vent, you may need professional assistance. If the smell is coming from the water flowing from your sink, and not the drain, there is probably something in the faucet causing the odor. Take off the aerator cap and look inside for any buildup or gunk you can clean off. How bad the smelly drain gets usually depends on how often you clean your drains.

There could also be stagnant water in your overflow drain, which can cause an unpleasant smell. Clean your bathroom sink routinely and use drain cleaners to avoid any smelly drain odors.

There are a couple of reasons that your shower drain or bathtub drain smells. There could be odor-causing bacteria feeding on debris in your pipes. This process will give off a foul-smelling hydrogen sulfide gas, which smells like sewage or rotten eggs. If your kitchen sink drain smells, especially if there is a sewer smell, you may have a dry P-trap. The P-trap is the curved portion of pipe under the sink. It is supposed to hold water, which creates a seal that prevents sewer gases from getting into your kitchen.

There needs to be water in the P-trap at all times. There may also be a drain pipe or vent problem. This could involve pipe damage or an obstruction in your vent. This is more common in kitchen sinks or drains where food or other biological material is regularly washed down the drain. The only way to solve this problem is to scrub the slime away, which can be easy or difficult depending on the pipe.

The real trouble begins when you notice the same sewer smell coming from multiple drains. If the home has been vacant for a while, try filling the water traps. But if the water traps are full and the odor is coming from everywhere, you probably have a bigger problem deeper in the sewer system.