Sequence Alpha Primer

The Sequence Alpha Primer Series is a true self-priming external pond pump built for koi keepers who need reliable priming without a check valve or foot valve. With 2-inch ports and a 1/2 HP TEFC motor, this pump delivers 6,800 to 7,800 GPH with up to 24 feet of head pressure — enough to handle dedicated filtration runs, UV sterilizers, and moderate plumbing distances.

Self-priming design is a real advantage when your pump sits above water level or at a distance from the pond. The Alpha Primer pulls air out of the line and gets water moving on its own, which simplifies installation and reduces the risk of running dry after a power outage. Both models run on 115V household power, so you won't need a dedicated circuit or special wiring.

At 369 to 504 watts, the Alpha Primer strikes a solid balance between flow performance and energy efficiency for mid-size koi ponds. Backed by a 5-year warranty, it's a dependable choice when self-priming capability is a must-have for your pond setup.