Thanks essup, I had to look up 50 micron, I will do that. right now I have screen wire wrapped around a bucket. It doesn't seem possible fish would be in a creek that has been dry for 9 months, until I thought about the fish that washed out of my pond into that same creek.
Heppy I have a Rule 4000gph pump. The graph shows 4000 gph at 0' head, at 20' of head(which I have) it drops to about 800 gph. I can't find anywhere if this is a cont. duty pump. I may try it out, tho. My luck with bilge pumps has not been good, they haven't lasted very long. Thanks for the suggestion.