Why Your Drain Smells Bad—and How to Fix It A bad smell coming from a sink, shower, or bathtub drain is more than a nuisance—it’s often a sign that something is stuck in the drain line or that sewer gas is escaping. In many homes, the odor can be traced to common causes such as organic buildup, grease, a clogged trap, or a dry plumbing “P-trap.” Because the smell’s source can differ by fixture, the most effective fixes depend on where the odor appears and how quickly it returns after cleaning. Common reasons drains smell bad Food, hair, and soap scum buildup can accumulate inside the drain and clog the flow enough for waste to break down and release an unpleasant odor. Grease and cooking oils are especially common in kitchen sinks. They can coat the inner pipe, trap other debris, and eventually cause persistent, lingering smells. Dry or l ... Read more »
Why Your Drain Smells Bad—and How to Fix It
A bad smell coming from a sink, shower, or bathtub drain is more than a nuisance—it’s often a sign that something is stuck in the drain line or that sewer gas is escaping. In many homes, the odor can be traced to common causes such as organic buildup, grease, a clogged trap, or a dry plumbing “P-trap.”
Because the smell’s source can differ by fixture, the most effective fixes depend on where the odor appears and how quickly it returns after cleaning.
Common reasons drains smell bad
Food, hair, and soap scum buildup can accumulate inside the drain and clog the flow enough for waste to break down and release an unpleasant odor.
Grease and cooking oils are especially common in kitchen sinks. They can coat the inner pipe, trap other debris, and eventually cause persistent, lingering smells.
Dry or l ... Read more »
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