On Jul 17, 9:58?am, lagman wrote:
All,

The sump pump in the house we just moved into runs about every 20-30
minutes when dry, but every couple minutes when we get a hard rain.
The previous owners installed an "Ace in the Hole" battery backup sump
pump. They assured me the battery was brand new.

I tried testing the system by unplugging the main AC pump. When the
water level reached the battery backup pump's sensor, it kicked on,
but the water level did not recede. I continued to hear the pump
running, but it did not seem to be pumping any water out.

Any ideas?

Thanks,
Dan

definetely get that fixed, backup pump may be defective.

any chance of running a physical drain line to daylight somehow so
gravity can do the job in a power failure?