I was filtering water on a recent trip and thought...
Why do I think that Giardia and Crypto are universally spread throughout the lake?
Fish aren't! Muck isn't! Even engine oil and gas is missing in some places and thick in others!
So why not the same for these bugs?
Surely there should be areas where G&C are thicker and areas where they are missing?
Anyone have an idea of how to find this info?