My gut tells me this has been covered before, but I have not been able to locate it.

I have 2 new ponds that I will be filling with a pump using creek water. My initial plan was to fill with the pump, sterilize and then maintain with a well. Problem is, I have punched two wells to 500 and 800ft and have 4gpm and 2gpm respectively (ouch - yeah I know...welcome to the piedmont section of SC).

Anyway, it looks like I will need to maintain the ponds with the creek water and I need a 100% sure fire method to filter the water to prevent a trash fish infestation. I know this creek will have everything from mud cats to gar and bowfin...not good.

I have heard mention of a "sock" for the pump but I'm not sure what the real name for this type of filter is...also, I have no idea if it would work well enough.

I'm thinking a "belt and suspenders" approach will be best and whatever filter I end up with, using it on both ends of the pipe (and maybe even once or twice in the middle).

I am pumping the water approx 3000 ft...the pump is a diesel that gives me 300gpm over that range. The ponds are each about 2 acres but pretty deep (20 ft avg - 30ft at the dam and 12 on the shallow end)...the ponds are close together (200yds apart).

Thanks in advance for any advice. If you suggest a commercially available product, please include manufacturer or retailer details if you know them.

"Many men go fishing all of their lives without knowing that it is not the fish they are after." - Henry David Thoreau