Pond Pumps

A pond pump circulates water through a waterfall, stream, or filtration system, and sizing it correctly affects almost everything else about how the feature performs. Undersized, and a waterfall looks thin and filtration can't keep up with bio-load. Oversized, and you're paying for electricity and wear you don't need.

Pumps are rated by gallons per hour (GPH) and by maximum head height, the vertical distance water needs to travel. Both numbers matter together: a pump rated for high GPH at ground level often puts out far less once it has to push water up several feet of waterfall. As a starting point, most builders aim to turn over the entire pond volume once per hour, then adjust up for a taller or wider waterfall.

Direct-drive pumps, including the A-Series line, are built for the highest head and volume, the long runs and tall falls that smaller magnetic-drive pumps can't handle. They cost more up front but hold up better under continuous heavy use.