Blocked drains easily happen to be one of the most complicated of all plumbing issues, and even poses health hazards. Drains can be blocked due to:

• Excessive amounts of toilet paper flushed down the outlet.
• Misalignment of the pipes, as a result of which the water cannot flow properly.
• Pipe collapse caused by the movement of heavy machinery over it or simply old age.
• Small cracks in drainage pipes are often penetrated by tree roots, which then grow and block the drain.

Drains can be blocked in a variety of ways and you might be able to clear them by yourself. Professional plumbers equipped with the necessary tools can clean out the pipe or repair it as needed.

Using a solution of baking soda and vinegar is the easiest way to clean a smelly drain. At first, one has to pour some hot water into the drain, following it up with a cup of baking soda. Two cups of vinegar need to be added and the solution should be allowed to fizz. The solution is to be left there for a while and at least an hour later, the drain has to be flushed using hot water. In most cases, this method effectively clears smelly drains. However, if it fails, the drain is likely clogged too much and you would require professional plumbing services to get it cleaned.