OK So I just moved into a rent house up in the Appalachian mountains in NC, and behind waist tall weeds I found an old 150gallon pond. It aint much but it's free. So.......... being the DIY guy that I am......... well, lets just let the pictures talk. Just got it running today. So no goldfish in there yet (although a frog decided to take a bath). Maybe when I get a house of my own I'll make a 2000 gallon Koi pond. Muahahaha!!!! Brand new 300gph pump with 2 way slit going to the brand new waterfall!