If you consider your primary sump pump as being in charge of keeping your basement or crawl space dry, you can think of a battery backup sump pump as the main pump’s insurance provider.
The Family Handyman on MSN11 个月
Homeowner’s Guide to Sump Pump Battery Backups
But a replacement won't help you if you're on vacation during a power outage, or if your pump dies while you're slumbering ...