Stop Chasing Fine Dirt: Bottom Feeder Cartridge Filter Assembly 2.0

Dust lines, cloudy steps, and second passes with a manual vac eat time and profit. We tackled the root problem—fine debris slipping through bags—and put the Bottom Feeder Cartridge Assembly Kit 2.0 to the test. The result is a portable vacuum that captures down to about 20 microns without losing thrust, letting us collect leaves and silt in one run while keeping maneuverability in tight spaces like spas and benches.

We break down why micron bags hit a wall as they load with dust, forcing water to bypass and spit from the bottom, and how a pleated cartridge changes the physics. The kit’s reverse-flow, fully sealed canister uses a Unicel C9405 element to lock debris in the core, so nothing escapes when you lift it from the pool or move to a spa. Its compact size keeps the cleaner balanced and easy to handle, yet it still holds around a pound of dirt—enough to handle multiple dusty pools before a rinse. For heavy leaf jobs, the threaded halo lets you swap from cartridge to bag in seconds, so you can adapt on the fly.

Expect no noticeable power drop compared to a bag; the Bottom Feeder and Shrimp keep full pull, and the five-inch throat on the Shrimp pairs especially well with the cartridge on top. When you add up fewer repeat visits, no manual vac setups, and longer intervals between cleanings, the ROI is clear—and the water clarity your clients see is even clearer.


• fine dirt limitations of micron bags
• cartridge filtration down to ~20 microns
• Unicel C9405 compact specs and build
• reverse-flow sealed canister design
• capacity around one pound of dirt
• when to use bag versus cartridge
• maintenance tips and storage basins
• thrust, balance, and power retention
• price point, savings, and ROI
• how to buy and available discount

Use code DVB100 to save $100 on the Bottom Feeder or Shrimp at thebottomfeeder.com.




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