| I'm not sure if it's truly a "bog garden", but the top of my waterfall is a barrel liner filled with pea gravel. The water is pumped to the bottom of the barrel and flows up thru the pea gravel. This is my filter. The store that I get my supplies from recommended this and it has been working fine. Take a look at the pics. Deb in PA |
Here is a link that might be useful: my pond