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Bottom Drains, Retro Drains, Aqua Art Pond Supplies. The pond keeper switches (via control ball valves) from primarly bottom drain suction to these side wall intakes during the cold winter months. This allows for temperature stratifiction of the water column, providing bottom pond temperatures to remain relatively warmer. Crack Mount And Blade War Band. Can also be used on our fiberglass pond shells, all models.

The intake can also be used as a bottom drain on our smaller fiberglas model pond shells.