Has anyone had any experience with some sort of above ground pool leak
detector? I figures if I could connect one probe to some sort of
sensitive
restiance (ohm) meter and put it in the water, I could maybe read the
resistance between the probe and ground and then as I got closer to the
leak
the restiance would go down. But the restiance is WAY high.. But seems to
me
something like that would work. Any ideas?

Maybe look only outside the pool for the wettest area. The keywords to look
for are in the direction of geophysics. These electrical methods are also
used to find subsurface water (e.g. where to drill wells)

Wim