thanks guys.
Got any specs or ideas for this leak proof container? I know that a real evaporation pan would be best but a little on the expensive side. How about a 5 gallon bucket or one of my wifes good cooking pans?
Of course I would need to make sure no animals drink from it to skew the results.
Would be really nice to have a good idea what the evaporation rate is because I think my daily loss it real close to the evaporation rate now.