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Battery Backup Sump Pumps

You can also buy pumps that will operate even when the electrical power goes out--in a thunderstorm, major flood, or brownout, for example. Most of these are intended to be auxiliary pumps. Used in tandem with the primary pump, they kick in if the main pump fails.

One type runs on a rechargeable 12-volt battery. Another is hooked up to the house's water system and operates by water pressure. Whether or not you need a backup really depends on your situation--the likelihood of a power or pump failure and the damage such a failure could cause.

In some cases, an inexpensive high-water alarm will suffice. On the other hand, if you're going to lie in bed on a rainy night and wonder if your new sisal-wool carpet is under water, a backup may give you more than flood protection--it may give you peace of mind.

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