Choosing a borehole pump can be a difficult decision considering the large range available and number of variables to consider. So, how do you decide which one is right for the job, especially when you need to extract water from a remote location? Wilo USA believes it has the answer with its 4-inch solar submersible pump, available in two series — the Wilo-Quick Solar and the Wilo-Opti Solar series.

Solar series pumps feature an efficient, simple design for clean water. The all-stainless steel solar submersible pumps offer either a centrifugal or helical rotor hydraulic execution and feature permanent magnet motors. Additionally, no external controls are required for the operation of either series.

“The Wilo-Quick Solar and Wilo-Opti Solar series make accessing water in remote locations and off the grid easier than ever,” says Matthew Beasley, director of sales for Wilo USA’s groundwater division.

The Wilo-Opti Solar has an operating range of 90 to 265 volts and up to 3,000 watts and can operate on either AC or DC power. The pump reaches heads to 755 feet and flows exceeding 60 gpm. The Wilo-Quick Solar has an operating range of 70 to 190 volts and up to 800 watts on DC only. Available in three 316 stainless steel helical rotor models and one 30 gpm stainless centrifugal model, the full series covers from 3 to 35 gpm and reaches a max depth of 400 feet. Custom solar systems are also available.

“The Opti pumps are especially flexible because they can run on either solar, AC, or DC power thanks to the available integrated frequency converter,” Beasley says. “The system is highly competitive and responds to your float or pressure switch, or rises to pump with the sun, all with no controls in the system.”

The pumps’ high motor efficiency and starting torque keep the systems moving in low light conditions for 24/7 access. The systems use a sophisticated dynamic maximum power point tracking algorithm to provide high water output, with remote monitoring and control available, as well as global sizing to provide a comprehensive solar pumping solution. According to Beasley, the company plans to expand its offering further by the end of 2018 with a new model, up to 6 kW. 888-945-6872; www.wilo-usa.com