I have pumped from the intermittent creek at the back of my property into my ponds, using a 2 inch gasoline powered pump. I get over 100 gallons per minute. I put fine mesh screen around a bucket, and put the pump intake in the bucket. But, I found if I pump a lot of creek water in, it causes a filamentous algae bloom. I think the creek water may contain excess phosphates. I don't pump unless the creek is running fairly clear. Right after a big rain, it is always muddy. I haven't pumped much in the last four years or so, because river otters have mostly destroyed my fishery.