Vivosun 310W Submersible Water Pump (5300GPH)
A stream or wide waterfall needs volume at height, not just a high number at zero head. Most pond pumps lose that volume fast as the lift increases. The Vivosun 310W Submersible Water Pump (model PG5300-S) holds its output. It moves 4,042 GPH at 6.6 ft and 3,197 GPH at 9.8 ft, and still delivers 1,717 GPH at 14.8 ft. Peak flow is 5,300 GPH from a 310W motor that runs at 30–40 dB.
The Vivosun 310W Submersible Water Pump fits the same 9.3″ × 5.8″ × 11.5″ footprint as the 220W model but delivers about 18% more peak flow. That makes it a straightforward upgrade when your pond or water feature grows. Its 1-1/2″ inlet and outlet accept 1-1/4″ or 1-1/2″ ID tubing. Five outlet positions from 0° to 180° let you route the discharge without added elbows.
The pump uses a cool-running wet rotor/wet bearing motor and a silicon carbide ceramic shaft and drive ring that resist wear. Its IPX8 housing is built for continuous submersion, and a removable pre-filter screen protects the impeller. Rated for ponds up to roughly 840 gallons, it runs submerged or inline to power large ponds, streams, filtration loops, commercial hydroponic reservoirs, and irrigation systems. It's designed for fresh water only.