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Zoeller 507-0005 Battery Backup Sump Pump System - 900 GPH, Automatic Operation, 60 Hz, Includes Battery Case, Dual Check Valves & Alarm Controller Reviews

4.6 Rating 110 Reviews
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The Zoeller MPN 507-0005 Basement Sentry battery backup system delivers emergency flood protection through its 12-volt DC pump configuration paired with integrated alarm controller technology. This comprehensive package combines noncorrosive polyethylene battery housing with dual check valve protection and solid-state circuitry designed specifically for basement groundwater management during power failures. Operating at 60 Hz with automatic engagement capabilities, this battery-powered sump configuration provides secondary protection when primary AC-powered pumps fail or electrical service interrupts. The system's 900 gallons-per-hour evacuation capacity at minimal lift heights ensures continuous water removal from residential and commercial sump basins when utility voltage disappears. Engineered for compatibility with standard deep-cycle marine batteries, the 507-0005 features a self-contained 10-ampere charging circuit with overcharge protection and thermal burnout prevention. The polyethylene battery case construction resists corrosion from basement humidity while the integrated lock strap secures the power source against displacement during aggressive pumping cycles. This Zoeller battery backup configuration includes all essential components for complete installation: the 12-volt submersible pump mechanism, dedicated float switch assembly, discharge check valve, alarm control panel, and weather-resistant battery enclosure. Professional contractors recognize this model number for its field-proven reliability in effluent and clear water applications where backup protection justifies the investment in emergency pumping infrastructure. Integrated 12-Volt DC Pump Mechanism & Noncorrosive Construction Engineering The heart of the MPN 507-0005 system features a purpose-built 12-volt direct current pump motor optimized for deep-cycle battery power delivery rather than conventional household voltage. Unlike AC-powered primary sump pumps requiring 120-volt electrical service, this DC configuration draws energy directly from sealed lead-acid or absorbed glass mat batteries through 6-foot power leads terminated with marine-grade connectors. Noncorrosive materials throughout the pump housing prevent deterioration from prolonged exposure to basement moisture and groundwater minerals. The impeller assembly and volute chamber utilize engineered thermoplastics that maintain structural integrity when submerged for extended periods, eliminating the cast iron corrosion concerns associated with traditional sewage pumps. This battery-operated pump generates sufficient hydraulic pressure to lift water 10 feet vertically while maintaining the specified 900 GPH flow rate through standard 1.5-inch discharge piping. The DC motor's electrical efficiency maximizes available battery capacity, extending emergency runtime beyond what conventional inverter-based backup systems achieve with comparable amp-hour ratings. Installation into existing sump basins requires minimum pit dimensions of 18 inches diameter by 24 inches depth to accommodate both the backup pump and the primary AC unit. The compact pump footprint allows side-by-side positioning with minimal interference, while the 6-foot power cable length provides flexible mounting options within typical residential basement configurations. Solid-State Alarm Controller With Multi-Function Indicator Array The 507-0005's control panel incorporates fully solid-state circuitry that monitors battery voltage, pump operation status, and water level conditions through visual and audible alert mechanisms. This microprocessor-based controller eliminates mechanical relay failures common in older backup systems while providing real-time diagnostics accessible without specialized testing equipment. Three distinct LED indicators communicate system health at a glance: power status, pump activation, and high-water alarm

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“This is a great little pump, but I have one modification that I would make to the installation. The standard installation of this pump with the supplied fittings calls for gluing the pump into a 1-1/2" PVC tee. The problem is, there is no way to remove the pump without cutting the PVC installation if you were to have a bad pump, and if the built-in, fifty-cent check valve/flap on the pump itself were to fail, there's no way to access it inside of the tee, even though it appears to be a replaceable part. So the pump is ruined. Instead, glue the pump into a 1-1/2" male threaded adapter that has been screwed tightly into a female threaded adapter glued into the tee. That way, if the pump needs to be removed for service, it can simply be unscrewed. Or if it goes bad, it could be replaced by a simple plug in the tee.”
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Posted 3 years ago
“Works great so far! It works exactly as advertised. Zoeller is the best in the industry. Straight forward install without issues.”
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Posted 3 years ago
“Product shipped and recieved no problems. Installed and working great!”
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Posted 3 years ago
“Very nice back up pump system. I have been installing them for years and I like this brand the best.”
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Posted 3 years ago
“the latest 507-005 is called the KEY..older model is the Sentry..both have the same #507-005..the difference is mainly in the charger/controller..Sentry is 10 amp, and it doesn't have a test function...Key model controller/charger is 1.6 amp and does have a test function button that activates the pump briefly..the low amp charger increases battery life but on a fully discharged battery may take 2-3 days to fully charge..the 10 amp charger model may take only 1 full day to fully charge..warranty on Sentry is only 1 year vs 3 yrs on the Key...gpm on the sentry is 23 at 5', and 15 at 10' with fully charged battery..if your vertical run is long or you get a lot of water, you might consider the 508 model which pumps almost twice the amount of water per minute but at the expense of slightly shorter run times..my Sentry model lasted 11 years and I just replaced it with the Key model..pump is identical on both..I recommend both as long as you know the limitations..take time to download and read the assembly instructions..build quality is typical Zoeller which is very good..”
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Posted 3 years ago
“Just installed this last night. Easy to install and works great during the initial test. Could not find anyone else who could beat this price as well.”
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Posted 3 years ago
“Fast shipping. Great service from Plumbing Planet. One small problem was quickly resolved by the Customer Service department. Backup pump installs easily if you follow the directions. Time will tell, but the Zoeller pump appears to be a great solution for a backup system. I will look to Plumbing Planet for future plumbing needs.”
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Posted 3 years ago
“Installed it easy as pie and so far no problems. I hope it continues to work when the power goes out. Not much more to say. Just make sure the sump hole is big enough for the extra height of the pump?”
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Posted 3 years ago