I have a $1200 reciprocating piston aerator pump that services my 3 acre pond. The aeration pump is installed in a special cabinet in the corner of a pond bordering a dirt/gravel road. I'm gifted with giant cottonwood seeds that spit trees. Between road dust and poplar seed, I need active filtration to extend pump life. Since the pump is housed in a double-cooled waterproof case about 2 blocks from my house, the noise doesn't really bother me (although it does provide a noticeable noise reduction). When I replaced the old filter after 4 months of dust and seeds, it went from light yellow creases to dark gray clumps. I expect to use 2-3 filters per season.
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