Not sure if anyone could use this but I've seen lots of postings about detecting water. Here is a small and inexpensive kit from Computer Geeks that detects DRY plant soil. Maybe it has some potential for detecting the presence of water?
Plant Soil Water probe
Joe
P.S. It's only 9.95 which is why I posted it here in Hot Deals.
Plant Soil Water probe
Joe
P.S. It's only 9.95 which is why I posted it here in Hot Deals.