Waterway PD-110 Power Defender 1.10 THP Single-Speed Pool Pump | 110/230V

1.10 THP Single-Speed In-Ground Pool Pump

• Waterway Power Defender 110 single-speed pool pump
• Manufacturer part number PD-110
• 1.10 total horsepower
• Dual-voltage 110/230V configuration
• Designed for in-ground pool circulation
• Direct drop-in replacement layout for Super Pump® and SuperFlo® installations
• Includes two self-aligning pump unions
• Includes a base for IntelliFlo® plumbing-height applications
• Silicon-carbide Viton shaft seal
• D.O.E. and C.E.C. compliant per Waterway

The Waterway PD-110 Power Defender 110 is a 1.10 THP single-speed in-ground pool pump designed for straightforward circulation-system replacement and dependable daily filtration. Waterway developed the Power Defender 110 around common residential pump-pad layouts, making it especially useful when replacing an older pump without wanting to redesign the entire plumbing arrangement.

Waterway lists the PD-110 as a direct drop-in replacement for common Super Pump® and SuperFlo® installations. The pump also comes with a base intended to help match IntelliFlo® plumbing height, giving installers additional flexibility when adapting the pump to an existing equipment pad. Always verify actual suction and return plumbing alignment before removing the old pump.

Single-Speed Simplicity

The PD-110 uses a 1.10 total-horsepower single-speed motor. Unlike a variable-speed pump with programmable RPM settings, this model runs at its designed operating speed whenever it is energized. That makes operation simple and familiar for systems where a compliant single-speed replacement is appropriate and where the existing controls are built around basic on/off pump operation.

Because pump selection affects circulation, filtration, heater operation, sanitation, and overall hydraulic performance, horsepower alone should not be used to choose a replacement. Confirm the existing pump application, plumbing size, electrical supply, system flow requirements, and local code requirements before installation.

Designed for Easier Retrofit Work

Waterway supplies the PD-110 with two self-aligning pump unions, which help simplify plumbing connections and future service. The included mounting base provides another option when the replacement pump needs to line up with plumbing heights associated with IntelliFlo® installations.

The Power Defender housing is designed as an in-ground pool circulation pump with an integrated strainer pot and clear access lid. Routine maintenance includes keeping the pump basket clean, maintaining proper water level at the skimmer, checking the lid and union seals, and confirming the pump remains fully primed during operation.

Durable Shaft-Seal Design

Waterway specifies a silicon-carbide Viton shaft seal for the Power Defender 110. These materials are selected for wear and chemical resistance in pool-pump service. Proper water chemistry and correct pump operation still matter: the pump should never be operated dry, and leaks or loss of prime should be corrected promptly to help protect the seal and other internal components.

Product Specifications

Installation & Electrical Notes

Pool-pump installation involves line-voltage electrical work and pressurized plumbing. Shut off all power before service and follow the current Waterway installation instructions, applicable electrical code, bonding and grounding requirements, and local regulations. The PD-110 is listed by Waterway for 110/230V operation, so the motor wiring must match the actual supply voltage before the pump is energized.

Prime the pump before operation and never allow it to run dry. Confirm all unions and drain plugs are sealed, the strainer basket is installed correctly, the lid is secure, and the suction path is open before startup. After installation, inspect for leaks and confirm stable water flow through the filtration system.

Confirm Fit Before Ordering

The PD-110 is especially useful when replacing a pump in a Super Pump® or SuperFlo® style layout, but a physical drop-in claim does not replace system sizing. Verify the old pump model, plumbing centerlines, voltage, required flow, filter capacity, heater requirements, and any local efficiency rules before purchasing. If your system would benefit from programmable speeds and lower-speed filtration, compare the Waterway Power Defender variable-speed models as an alternative.

Buy with Confidence

Benchmark Pool Supply helps customers match replacement pool pumps by model number, total horsepower, voltage, plumbing layout, and system application. Before ordering PD-110, confirm that a 1.10 THP single-speed in-ground circulation pump is appropriate for your pool and that the Waterway plumbing layout matches the equipment being replaced.

Frequently Asked Questions

What is the Waterway PD-110?

The PD-110 is Waterway's Power Defender 110, a 1.10 THP single-speed circulation pump for in-ground swimming pools.

What voltage does the PD-110 use?

Waterway lists the PD-110 as a dual-voltage 110/230V pump. The motor must be wired to match the actual electrical supply before operation.

What pumps is the PD-110 designed to replace?

Waterway describes the PD-110 as a direct drop-in replacement layout for Super Pump® and SuperFlo® installations and includes a base for IntelliFlo® plumbing-height applications.

Does the Waterway PD-110 include pump unions?

Yes. Waterway lists two self-aligning pump unions as included with the Power Defender 110.

Is the PD-110 a variable-speed pump?

No. The PD-110 is a single-speed pump. Waterway also offers Power Defender variable-speed models for applications that require programmable speed control.