What causes a sink drain to gurgle?

Answer

The gurgling sound in a sink drain is an air-related issue. SF Gate says that either the drain has no vent, it has an improperly installed vent or a vent is blocked. This issue creates a vacuum as water passes through the drain that makes a sucking noise as the pressure equalizes in the pipes.

If the drain has a vent, owners should be able to locate it on the roof near the location of the offending fixture. If the roof is accessible, the vent is easy to inspect. Birds and other small animals often build nests in vents, blocking access to air. Cleaning the debris from the pipe allows the air necessary to equalize pressure. If the materials are not accessible from the top of the pipe, a plumber's snake or water hose can help to move them through the vent and wash them down the drain.

When snow and ice accumulate on the roof of a home, they also have the potential to block vents. Removing the accumulations stops the gurgling drain. However, under these conditions, it is essential that the individual use caution as the roof is extremely slick. It is often a better option to allow nature to thaw the ice, even though it involves listening to the gurgle each time someone uses the drain.

Q&A Related to "What causes a sink drain to gurgle?"
your vent on your shower or kitchen (if you have one) is not working and either the air from the water in the shower drain is carried down stream till it T's off to your kitchen sink
http://wiki.answers.com/Q/What_would_cause_kitchen...
Water pushes into household water systems with the aid of an individual well pump or pressure provided by elevated water supplies in municipal water towers. Sanitary sewers and septic
http://www.ehow.com/info_12161802_causes-upstairs-...
Typically sink holes are formed when water is removed from soil, leaving large caverns below the surface of the earth. When the water is removed, there is nothing to support the weight
http://www.ask.com/web-answers/Science/Physics/wha...
A root killer won't solve your problem but it will kill the roots and give you some time to decide the course of action you should take. After the roots are killed you still might
http://en.allexperts.com/q/Plumbing-Home-1735/gurg...
Explore this Topic
Sink drain smell is caused by organic refuse in the drain pipes. These are mostly rotten foods and grease. To get rid of the smell one can pour bleach into the ...
Bathroom odors can be caused from several different things. The bathroom could be dirty and in need of cleaning. There could be something in the tub or sink drain ...
About -  Privacy -  Careers -  Ask Blog -  Mobile -  Help -  Feedback  -  Sitemap  © 2014 Ask.com