Gurgling Toilet & Sinks
The annoying sound of gurgling coming from a sink or toilet does not necessarily mean you have to immediately call a plumber. Sounds coming from the plumbing system have a variety of causes and solutions. Depending on the severity of the problem, you might have the skills to fix things yourself. Does this Spark an idea?
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Lack of Air
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Gurgling often indicates a lack of air in the plumbing system. Your home's pipes need a constant supply of air for water to flow smoothly. When the drainage system does not get enough air, water struggles to move through the line and makes a gurgling sound as a result. When a well designed plumbing system works properly, air flows through the pipes before any sink drains or anyone flushes a toilet.
Lack of Air in Trap
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Sinks have traps under them which catch any valuables that fall into the drain and prevent harmful gases from backing up and entering the home. When traps do not have proper ventilation, slow drainage and gurgling results. A vent pipe installed within 3 feet of the trap which draws air from an opening on the roof ensures that the trap has plenty of air whenever the sink drains. A mechanical vent that does not extend to the roof, but that rather draws air from the area under the sink, can also work well.
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Blocked Vent
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A blocked plumbing vent can easily cause gurgling, since it prevents air from entering the system. For example, a toilet might not receive enough air to flush normally if snow, ice or debris block a roof vent. Sometimes an animal, such as squirrel, might build a nest that blocks the vent. Clear any obstruction with an auger or have a plumber do it for you. You can also add an extension so the vent remains clear of any snow. Covering the vent with hardware cloth prevents any animals from gaining access, advises the This Old House website.
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Clog
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Slow draining and gurgling might also result from partial blockage of drains caused by clogs, rather than simply a lack of air. For simple clogs, use a plunger on a toilet and remove and clean the trap under a clogged sink. More serious clogs may require the use of an auger, or plumber snake, to clear out the blockage. Clogs originating in the main sewer line might necessitate the services of a professional plumber.
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