PW2500 to 5500

Oklahoma

UPS Ground

Cal Pump High-Volume Waterfall Pumps feature capacities from 1,200 to 5,750 GPH. They are ideal for waterfalls, streams, and large water features. Easy to use, just set in water. Must be used submersed. Built-in carry handle on all models.

• Wear-resistant .304 stainless steel motor shaft
• Non-corrosive pump construction
• Water-cooled, no danger of oil contamination
• Capacitor start motors
• Ceramic mechanical seal
• Heavy-duty motor shaft ball bearings
• Screened sump-type suction or 1-1/4" MNPT suction for in-line application (PW2500 to PW5500 models only)
• Must be used submersed
• 1-year manufacturer's limited warranty

Continuous operation of these pumps in a pond or waterfall requires that the pump be sized for each specific installation. Centrifugal pumps last longer and use less electricity when operated in the mid-range of their performance curve (see chart below). To calculate this, measure the height in feet from the surface of the pond water to the point where the water returns to the pond (perhaps a waterfall spillway). Add one (1) foot for every 90 degree elbow through which the water passes from the pump to the point of return. Add one (1) foot for every ten (10) foot length of tubing. This will provide the total height that the pump must move the water. Locate that height in feet on the vertical axis of the chart below and read to he right until you intersect the line that represents the pump you would like to purchase. It is best to operate the pump in the head height shown by the green area. If the lines intersect too far to the left of the graph you must choose a larger pump. If they intersect too far to he right you may either choose a smaller pump or install a ball valve at the discharge of the pump. By slightly closing the ball valve, never more than one third, you will create additional back-pressure on the pump that will allow it to operate correctly in the mid-range of its performance curve. Proper sizing of the pump to your specific installation will ensure optimal performance and maximum pump life.

click on image to enlarge

• MUST be plugged in to properly grounded and GFCI (Ground Fault Circuit Interrupter) protected 120 Volt outlet !
• Designed to be used inside a pond skimmer, otherwise a pump sock (shown below) is strongly recommended to protect the pump from heavy debris
• To ensure optimal performance and maximum pump life, pump must be sized according to the chart above
• These pumps only have a 1-year manufacturer's limited warranty
• Not for use in swimming pools or salt water

Oklahoma

UPS Ground

Designed for "sump pump" style pumps, such as Ebara and large Nursery Pro, Beckett, Cal Pump, Danner, United, and Little Giant waterfall pumps. Protects all sizes of submersible pumps from large debris. Allows for better water flow and cooling of pump. Will adapt to vertical or horizontal discharges.