After a fair amount of regrading etc., we've manage to get things to the
point that, when it rains an inch or so, the sump pit in our basement
only has to empty once every 10-15 minutes, rather than every 1-2
minutes like it did when we bought our house.
As much of an improvement as that it, it still means we're screwed if
the pump fails on us (which it is has done twice in four years) or if
the power is lost for an extended period of time. Until we figure out
how to make flooding a virtual impossibility (barring major acts of
God), we're reluctant to even finish out our otherwise nicely spacious
basement, let alone follow up with extended trips out of town.
Any suggestions on what kind of a backup system to install? I'm aware
that there are battery-powered backup pumps, but my impression is
they're pretty expensive for any kind of reasonable capacity.
I'm aware that there are simple nozzle devices (eductors) that can use
water pressure from a garden hose to suck water out of low-lying areas.
I'm wondering if there are adaptations of this idea that could serve
as a backup to the sump pump when there's no electricity.
Also, I should mention that there are *two*
conventional sump pits/pumps
in our basement, but for reasons that are beyond my ken, the drain tiles
served by each are unconnected (the ends are separated by about 6'; I
know this, because they were installed after the house was built, and
you can see where the concrete was chopped up).
Thus, a failed pump on one end of the basement means flooding, even if
the pump on the other end *could*
have taken up the slack. Again, it's
happened to us twice.
Is this just stupid, or is there a good reason (beyond saving the cost
of chopping an extra 6' of channel in the basement floor) that I'm just
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