How To Test Sump Pump Backup Battery. Install check valves below the 45 degrees angle and below the y connector. When faced with a power failure or problem with the primary system, the battery backup sump pump will activate automatically and takes over as the main pump to prevent flooding.
The battery backup system operates in conjunction with a deep cycle battery, which is designed to regularly discharge most of its capacity. Then, unplug your main pump and let your backup turn on. Always make sure to test the sump pump battery every 8 to 12 months.
These batteries are made for constant charging and discharging, (cycling) without rapidly degrading the integrity of the battery.
At first find the way of how you are going to connect discharge lines with your current sump pump and with your backup sump pump. Unplug your main pump, and let the battery backup do its job. Connect main discharge line with primary sump pump. Water is at an emergency level in your sump pit right now.