How to Install a Battery-Operated Backup Sump Pump | This Old House

This Old House plumbing and heating expert Richard Trethewey shows how to keep a basement dry with a battery-operated backup sump pump—even when the power goes out. (See below for a shopping list and tools.)
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Shopping List for How to Install a Battery-Operated Backup Sump Pump:
- 110-volt sump pump with battery-powered backup sump pump
- check valve
- deep-cycle 12-volt marine battery with protective box
- Teflon tape
- 1_-inch-diameter PVC pipe and assorted fittings
- PVC primer and cement
- stainless steel hose clamps and hose-clamp connector

Tools for How to Install a Battery-Operated Backup Sump Pump:
- screwdriver
- handsaw
- utility knife

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How to Install a Battery-Operated Backup Sump Pump | This Old House
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