SURF4 newly placed in a large sump

[SantaMonica]

This brand new SURF4 scrubber® has its LED lid removed, and is floating in a large saltwater sump. It takes very little space; it stays above the live rock below it, and below the top of the sump, which can be easily closed if needed to reduce evaporation. Also, the water level in the sump can vary greatly, with no effect on the Surf.

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