Water flow rate for fountain

[JimB]

sorry about that

Has anyone used SONOFF SNZB-05P for detecting "low/out of water" in a fountain, etc?

I've got a fountain that has its own 2 gal water reservoir in the base. I currently have a b-hyve hose adapter feeding water to this three-six times/day. I'm in FL so temps go really high and the water empties quickly. Instead of wasting water refilling the fountain when it's NOT empty - and thus having the water run out and muddy the area around the pond, I'd thought of putting a water sensor on a "rock" or "lift" or something about 6" from the bottom of the reservoir, get the REVERSE of what a…