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Bio filter question
My pond has about a 15-20' long sloping stream/waterfall that empties
into the main body of water. I have been looking at biofilters, plans and ideas people have posted on this forum and doing a lot of reading. My question is, instead of sinking and pumping water through a huge bucket in my pond, filled with whatever media, Couldnt I simply line the bottom of the stream bead with more rocks and maybe even mix in a fair amount of lava rock and/or other media for filtration? The water flows pretty nicely through the stream bed, wouldnt this effectively filter my water to some degree? Wouldnt the flowing water from the "falls" running around the rocks essentially be the same thing as pumping water through a filter box filled with lava rocks? Seems like I could spread the filter media out over a larger area and provide a more natural look to the pond while at the same time filtering. Functional and unnoticable filtration that simply looks like part of the pond rather than an unsightly 55+ gallon bucket sunk in my pond. The pond is 2835 gals. I will be using(whenever it gets here) a 3500 GPH pump that pumps 2785 GPH @ 5' to power the waterfall and circulate the water. |
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