Help me build a pond filter.
I have a Little Giant 200gph pump and about three gallons of bioballs left over form a reef tank.
I have a 350 gallon above ground pond framed in wood.
There are many ways I could run the plumbing and places to place the bioballs but I am also looking for ideas before I go to Homedepot and start my experiment.
The pump will also sit about 6 inches above the water line. Does this mean I also have to put in a check valve???