BETTER IDEA - Reduce Sump Refill Maintenance, cheap way

Seems like a better idea would be to model a system after the
"automatic watering" dog/cat bowls. Or the standard office
water-cooler.

A sealed semi-hard "reservoir" container is suspended upside down and
the tip (opening) of the container is set at the desired water line in
the sump... as the sump level gets low, air is then allowed into the
reservoir and thus allowing some water to escape filling the sump to
the desired level... until it gets low again and repeats the process.

Of course it would be impractical to stick a bottle into your sump,
thus you could just add a wide hose to the end of the reservoir
bottle. One end of the hose would be sealed on the reservoir
opening... the other would be clamped to your wet/dry with the end of
the hose at the desired water level.

Unlike the system you recommended this will keeep the sump filled to
the proper level ALL OF THE TIME... as opposed to the level going down
more slowly.

Now that we've got this discussion going.. I may just have to build me
a system like this! I know what it's like to come back from vacation
and have my sump get low!

Does this make sense? If not, just go find your closest office water
cooler (the kind with the 5-gallon bottles on top) and observe how
that works. The water cooler has a small sump that is constantly
filled by the 5-gallon bottle... but never overflows!