I have the majority of the supplies to start a garden pond/koi pond. But, being a complete rookie, have many questions. First off, I have a homemade filter system in which the water enters the bottom, rises and then overflows back into the pond. Would it be possible to make a sand/charcoal filter out of this? Primarily the pond will be used for ducks, but I would also like to have koi (and yes, I will section the pond(s) off so that koi and ducks are separate. Depending on the probability of this type of filter cleaning the water good enough for koi from the nasty ass ducks (girlfriends, not mine), does anyone have any experience setting up something like this? This filter will be at the head of the pond/streams and I will be placing another filter at the end to catch debris and house the pump. At this time, I have 3 flexible liners and 2 hard plastic liners that I plan on making 3 "ponds" and a stream, all connected together. Any help/ideas/suggestions are appreciated. Thank you.






