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Preventing Drain Clogs & Backups
Drains always seem to back up at the least convenient times, so be prepared. Basic tools to have on hand include a plumber's helper or plunger, chemical drain cleaners, and a drain auger.

If you've tried a plunger unsuccessfully, be sure that the suction cup is big enough to cover the drain opening completely but not so large that a huge amount of effort is requireded to unclog the drain.

Use chemical drain cleaners sparingly. They can damage your pipes and are hard on the environment. Use only in a well-ventilated room, and don't let chemicals come in contact with your skin, even when they are diluted with water.

Never use a plunger and chemicals in combination: Caustic water could splash your skin. Wear rubber gloves, eye protection, and be sure to follow the label's directions carefully. Some products are alkalis that cut grease; others are acids that dissolve clogs.


Feed a drain auger through the drain and patiently guide it past bends in the pipe. If this doesn't work, try snaking through the soil stack, main cleanout, or house trap.

Of course, it's easier to open a drain than to clear a clogged one. Scalding water can clear drains of grease. Install a strainer in kitchen and bathroom sinks to prevent hair and soap, small utensils, and other objects from slipping down the drains.

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