Leak or no Leak. That is the question

[EricV]

http://www.usda.gov/oce/weather/pubs/Weekly/Wwcb/

Click on Bulletin. When the PDF loads scroll to Pan Evaporation. This is only available during the growing season but it will give you an idea what the evaporation range for your area is. The evap rates are not available for all areas, only those that have agricultural lands.
This is also a good guideline for evap rates-
View attachment 94153

Thanks. Plenty of ag here, so I can at least get an idea.

 

[texmaster]

Ok I took this one last night.

And this one just an hour ago. No waterfalls. Just still water in mid 90s weather