Category 02 · Pond pumps

Pond
pumps.

Pond pumps circulate water through the pond system, moving it from the pond through filtration and back. Ratings are expressed in gallons-per-hour (GPH) at a given head pressure; manufacturer specifications typically include a flow curve describing how output varies with vertical lift. This category covers submersible and external centrifugal pumps sold for outdoor pond use.

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Category note

Pond pumps are rated in gallons per hour at a stated head pressure. Flow rate decreases as water is lifted higher; always check the pump's flow curve against the vertical distance in the intended plumbing run.