I don’t know if this will help anyone. I hope so. I think this is a great project, capable of making a significant dent in water use.
First, I’ve been getting reports from Texas A&M for about a year now. They have a lot of information on ETo. The main place to get that information is here.
A&M also has a store that sells catch cans. It’s really easy to use these. I have a set. You can find them here.
Again, great job.