Lightweight modular water purification system with reconfigurable pump power options

This is a water purification system built from connectable modules, including filtration elements and a pump. A key feature is a pump that can be interchangeably mounted onto either an electric motor module or an internal combustion engine module, allowing the user to select their power source. The pump connects precisely to the chosen motor or engine via a drive shaft.

Why it matters: Battery energy density and electric motor efficiency have significantly improved since 2010, making the electric drive module more powerful and practical for portable applications.

Status: Not in forceListed as no longer active. The specific reason is not in the record we hold.
How hard to build: ModerateCustom pump mounts, drive shaft coupling.

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